COLUMBIA  LIBRARIES  OFFSITE 

HEALTH  SCIENCES  STANDARD 


HX64071430 
RK686  R51  a  catalogue  of  Ritte 


RECAP 


v/  UiJiM^iiLi^  i 


mtl\t€itpt^mm^cvk 

CoHege  of  Mpsidms  anb  ^urgeong 
I-tbrarp 


Digitized  by  the  Internet  Archive 
in  2010  with  funding  from       ; 
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http://www.archive.org/details/catalogueofritteOOritt 


zA  Catalogue   of 

%ITTE%^  T>ENTAL 
EOUI'PMENT 


Chairs  *  Engines  ^  Lathes  ^  Distributing  Panels 
Air  Compressors  *  Unit  Equipments  ''  Ionization 
Equipments  ^  Spray  Bottle  Warmers  <  Air  Fittings 
*  Supplies    and    Accessories    for  the   above  ^ 


THE 
%J^'r'rE\^T>KNTAL  .MFC,  CO. 

of  'K^OCH ESTER,  ,7^._  T.,  V.  S.  A. 


E.s  I  a  h  li  s  h  e d    jSSS 


Copyrighted  1919 

by 

THE    RITTER   DENTAL   MFG.   CO. 


CX)  /  T  T^  7^  Product  has  served  the  dental  profession 
V^  for  thirty  odd  years  in  practically  every  part  of 
the  world,  with  the  result  that  the  name  "RITTER" 
on  dental  equipment  is  generally  accepted  as  being  a 
guarantee  of  sterling  quality,  absolute  satisfaction  and 
continued  good  service. 


/OO   OW-A-DAYS  modern  equipment  is  just  as  essen- 

/   l^     tial  as  modern  methods  of  practice,  for  it  is  a 

generally  conceded  fact  that  the  public  is  guided 

to  a  considerable  extent  not  only  by  the  reputation  of  the 

practitioner  and  his  ability  to  do  efficient  work,  but  also 

by  the  appearance  and  equipment  of  his  office. 

It  requires  time  to  demonstrate  ability,  but  success 
which  is  usually  coupled  with  ability,  is  immediately  ap- 
parent in  a  modern  office.  ''  Therefore  money  invested 
in  new  equipment  installed  in  offices  properly  furnished 
and  tastefully  decorated  is  well  spent. 

For  more  than  a  quarter  of  a  century  Ritter  Dental 
Equipment  has  been  made  in  accordance  with  the  most 
approved  manufacturing  methods  in  a  complete  factory, 
thoroughly  equipped  with  modern  machinery,  operated 
bv  skilled  mechanics,  and  the  product  in  turn  has  been 
marketed  to  the  profession  through  dental  dealers 
throughout  the  world,  thereby  enabling  us  to  co-operate 
with  the  dealers  in  rendering  service  to  the  consumer, 
which  service  we  consider  a  component  part  of  Ritter 
Product. 

We  have  a  competent  organization  to  handle  and 
render  this  service  to  members  of  the  profession.  ^  Our 
years  of  experience  in  planning  dental  office  suites  includ- 
ing suggestions  for  the  proper  arrangement  of  equipment 
and  furniture,  appropriate  decorations,  harmonizing 
draperies  and  floor  c(jverings,  practical  lighting  fixtures, 
office  systems  and  suggestions  for  stationery,  announce- 
ment and  appointment  cards,  has  enabled  us  to  be  of  ma- 
terial service  to  practitioners  in  all  parts  of  the  world.  ' 
This  service  is  entirely  at  the  disposal  of  any  practitioner, 
without  charge  or  obligation  on  their  part,  whether  or  not 
thev  own  or  purchase  Ritter  E(]uipmciit. 

T  I  f  I.    R  I  T  T  I,  R    D  i:  X  T  A  I,    M  r  (; .    Co. 


C^lJ 


UAMANTEE 


VERY  possible  precaution  is  taken  to 
keep  our  product  free  from  imper- 
fections in  material  and  workman- 
ship. ^  We  will  adjust  to  the  satisfaction 
of  the  owner,  any  time  within  one  year  from 
date  of  purchase,  any  defects  not  caused  by 
misuse  or  neglect,  upon  receipt  of  the  article 
in  question  at  our  factory,  all  transportation 
charges  prepaid. 

It  is  our  desire  to  do  everything  that  is 
consistent  and  possible  to  see  that  every 
article  of  our  manufacture  gives  entire  satis- 
faction and  continued  good  service  to  the 
purchaser,  for  we  are  firm  believers  in  the 
old  adage  that  "A  pleased  customer  is  a 
firm's  best  advertisement,"  and  that  the 
policy  which  will  best  protect  the  interests 
of  owners  of  Ritter  Equipment  is  the  policy 
that  will  best  maintain  the  reputation  of 
this  Company  and  its  Product. 


(^^NEMALC/I 


ENEMAL  C/ NFOMMATHON 


^(T^UR  product  is  sold  through  dental  dealers,  a  ma- 
jority of  whom  carry  a  representative  stock  and  are 
in  a  position  to  co-operate  with  us  in  serving  the 
profession  to  the  best  advantage. 

It  is  not  always  convenient  or  practical  to  withdraw 
funds  from  other  sources  with  which  to  purchase  new 
dental  equipment,  especially  so  where  the  purchase  of  a 
complete  outfit  is  contemplated,  and  for  this  reason  we 
have  provided  a  plan  whereby  product  of  our  manufac- 
ture together  with  other  non-competitive  dental  office 
equipment  and  furniture  may  be  purchased  from  dental 
dealers  on  the  deferred  or  extended  payment  plan,  making 
it  possible  to  buy  an  entire  outfit  on  convenient  terms  with 
only  one  payment  per  month  to  be  taken  care  of.  ^  Sin- 
gle items  or  a  complete  outfit  may  be  purchased  upon  an 
initial  cash  payment  of  157^  of  the  total  amount  of  pur- 
chase, the  remainder  to  be  paid  in  monthly  installments 
of  not  less  than  V/<  of  the  balance  of  the  amount,  the  ac- 
count to  be  in  the  form  of  a  conditional  contract  of  sale 
with  monthly  installments  or  deferred  payments  evi- 
denced by  notes  of  denominations  of  even  dollars  bearing 
()''<  interest  from  the  date  of  contract.  ''  Full  informa- 
tion in  reference  to  this  plan  may  be  obtained  of  dental 
dealers  or  direct  from  us. 

Where  Ritter  Product  is  purchased  for  cash  the  fol- 
Irnving  discounts  are  allowed  by  dealers: 

V/>  on  amounts  from  $2.^.00  to  :f^  1 00.00 
57'  on  amounts  of  and  over  $100.00 


Orders  for  parts,  sundries,  etc.,  direct  from  our  factory 
should  be  accompanied  by  remittance  covering  the  cost 
of  same,  unless  dealer's  name  is  indicated  and  notice  given 
to  pass  charge  through  said  dealer. 

When  sending  equipment  for  repairs,  transportation 
charges  should  be  prepaid,  as  we  cannot  assume  charges 
either  incoming  or  outgoing.  ''  Whenever  possible 
have  repairs  sent  through  dealers.  ''  If  sent  direct  to 
our  factory  they  will  be  returned  C.  O.  D.  unless  dealer's 
name  is  indicated  and  notice  given  to  pass  charge  through 
him. 

When  ordering  electrical  equipment  it  is  essential  that 
the  exact  current,  voltage  and  frequency  be  specified.  ' 
When  ordering  new  parts  or  attachments  for  electrical 
equipment,  always  furnish  serial  number  of  the  apparatus. 
'  When  ordering  parts  for  chairs,  kindly  supply  name 
of  the  chair,  serial  number,  and  if  the  parts  are  enameled, 
the  finish  of  same. 

Prices  as  quoted  in  separate  pricelist  in  envelope  on  in- 
side back  cover  of  this  catalog  are  all  f.  o.  b.  Rochester, 
N.  Y. 


J^ANUAL  dexterity  alone  will  not  furnish  the  dentist  the 
means  of  making  a  success  of  his  professional  career.  His 
office  must  be  equipped  with  an  outfit  of  time  and  labor  saving 
devices  of  the  highest  type  so  that  he  may  be  permitted  to  ask  fees 
that  are  commensurate  with  the  character  of  service  demanded  by 
an  exacting  clientele. 


The  I^tter  (^hair 

^^  /-r  OR  more  than  a  quarter  of  a  century  the  chairs 
(^/  made  by  this  company  have  occupied  a  most 
enviable  position  in  the  trade  and  profession,  for 
it  has  been  our  constant  aim  to  anticipate  the  needs  for  im- 
proved equipment  in  keeping  with  the  marked  advance 
made  by  the  dental  profession  from  year  to  year.  ^  In 
its  present  high  standard  of  development  the  Ritter 
Chair  will  deliver  a  maximum  of  adaptability  and  service 
with  the  fewest  adjustments  and  at  the  same  time  insure 
comfort  to  both  patient  and  operator.  *  The  modern 
dental  office  requires  that  the  design  of  the  dental  chair  be 
symmetrical  and  pleasing  in  appearance  and  that  the  finish 
be  attractive  and  durable,  and  in  keeping  with  these  de- 
mands the  Ritter  Chair  will  be  found  to  enhance  the 
appearance  of  the  best  appointed  office. 

The  disk  plate  or  base  is  sufficiently  large  to  insure  a 
firm  foundation  for  the  chair  without  the  necessity  of 
screwing  same  to  the  floor,  even  when  used  in  the  most 
extreme  positions.  "  The  inner  edge  of  this  plate  is  con- 
cave to  give  ample  foot  room  when  standing  close  to  the 
chair,  and  heavily  nickel  plated  rims  are  provided  as  a 
protection  to  the  enameled  portion  of  the  plate.  '  Ritter 
Chairs  were  the  first  in  which  the  hydraulic  principle  of 
elevating  and  lowering  was  used  and  while  minor  changes 
and  refinements  have  been  made  from  time  to  time  to  keep 
pace  with  the  general  improvements  in  the  chair,  the  un- 
derlving  principle  has  not  been  altered  and  as  it  stands  to- 


The  "MUter   £hair 


Standard  Position^  Front 

It  will  be  found  to  enhance  the  appearance  of  the  best  appointed 
office,  for  it  is  symmetrical  in  design  and  pleasing  in  appearance. 


rhe  %Uter   f/;.//r 


Standard  Position^  Back 

I  V  has  been  designed  with  the  idea  of  securing  the  greatest  range  of 
adaptability,  combined  with  comfort  to  both  the  patient  and  operator. 


lo  The  Tauter  £hair 

day  our  hydraulic  elevating  mechanism  is  mechanically 
perfect.  ^  The  cylinder  containing  the  working  parts 
sets  into  the  oil  reservoir,  insuring  perfect  lubrication  to 
all  working  parts.  ^  The  elevating  tubes  with  their 
tracks  extend  from  within  this  cylinder  and  adjusted  fric- 
tion rollers  guide  these  tubes  at  the  top,  while  steel  guide 
rods  steady  the  lower  end  and  provide  long  bearings 
which  prevent  the  tubes  from  binding  and  twisting,  in 
fact,  make  them  absolutely  rigid.  ^  The  tracks  occupy 
but  a  small  portion  of  the  outside  surface  of  the  tubes, 
permitting  the  remainder  to  be  finished  in  enamel. 

Operation 

A  light,  steady  stroke  or  pressure  on  the  foot  lever 
rapidly  elevates  the  chair.  ''  Two  elevating  tubes  oper- 
ate simultaneously,  thereby  eliminating  the  usual  jar  or 
jolt  experienced  when  separately  operating  tubes  engage. 
As  the  extreme  height  is  reached,  a  valve  is  automatically 
tripped,  which  brings  the  chair  to  a  stop  without  the 
slightest  perceptible  jar.  ''  To  lower  the  chair  a  small 
release  lever  is  depressed  and  the  speed  of  the  descent  is 
under  the  entire  control  of  the  operator  at  all  times.  ^  A 
regulating  valve  is  also  provided  to  adjust  the  speed  of  the 
descent.  ^  Releasing  the  pressure  automatically  brings 
the  chair  to  a  stop  at  any  position  and  in  reaching  the  low- 
est position  a  cushion  valve  operates  and  the  chair  comes 
to  rest  imperceptibly  on  a  cushion  of  oil.  ^  There  are 
absolutely  no  jolts  or  jars  in  either  its  raising  or  lowering; 
in  fact,  the  operation  of  the  Ritter  Chair  is  so  smooth  and 
easy  that  the  patient  is  not  aware  when  the  chair  has 
stopped,  either  in  its  ascent  or  descent.  ''  The  chair  may 
be  revolved  easily  on  two  highly  polished  bearing  surfaces 
and  may  be  instantly  locked  in  any  desired  position  by  a 
convenient  foot  lever. 


The  '^^tter  £hair  u 


zAdjustahk  T'/atfonn 

The  platform  and  foot  rest  is  adaptable  to  patients  of 
any  size,  and  being  of  closed  construction  is  more  satis- 
factory from  the  standpoints  of  operation,  comfort  for  the 
patient  and  cleanliness.  The  metal  foot  plates  of  the  plat- 
form can  be  elevated  to  a  single  plane  by  a  conveniently 
locked  foot  lever  and  lowered  by  an  automatic  de- 
vice. ^  This  raised  position  is  very  desirable  for  small 
or  medium  sized  patients  and  also  valuable  in  the  admin- 
istration of  anesthetics,  as  the  platform  presents  no  pro- 
jection for  the  patient  to  secure  a  foot  hold  with  the  re- 
sultant physical  strain  to  the  patient  and  inconvenience  to 
the  operator.  ^  The  heel  plate  is  provided  with  an  auto- 
matic lock  which  holds  it  firmly  in  position  when  raised 
to  form  a  foot  rest  for  very  small  children.  ^  The  sides 
of  the  metal  platform  plates  extend  beyond  and  protect 
the  enameled  portion  of  the  platform  frames.  <  These 
plates  are  covered  with  inlaid  rubber  mats  of  the  best 
quality,  which  are  removable,  can  be  readily  cleaned  and 
add  materially  to  the  attractiveness  of  the  chair. 

The  "Body 

The  body  of  the  Ritter  Chair  has  been  designed  with 
the  idea  of  securing  the  greatest  range  in  adaptability, 
combined  with  comfort  to  both  the  operator  and  pa- 
tient. '  It  is  balanced  with  exceptional  accuracy  and 
can  be  tilted,  without  the  least  exertion,  to  any  desired 
angle.  A  light  pressure  of  the  hand  or  foot  on  the  tilting 
lever  releases  the  lock.  ^  Releasing  the  pressure  auto- 
matically operates  the  lock  that  holds  the  chair  rigidly 
in  any  position.  <  The  capacity  of  the  seat  can  be  varied 
by  the  lateral  swinging  movement  of  the  arms  to  accom- 
modate patients  of  any  size  with  comfort.  <  The  arms 
may  be  dropped  entirely  out  of  the  way  or  securely  locked 
in  any  desired  position,  or  they  may  be  adjusted  to  a  hori- 
zontal position  and  locked,  forming  a  convenient  seat  for 
the  operator. 


12 


The  "Better    Qhair 


High  and  how  Positions 

(ly^S  the  extreme  height  is  reached  a  valve  is  automatically  tripped, 
which  brings  the  chair  to  a  stop  without  the  slightest  jar,  and  at 
the  lowest  position  a  cushion  valve  automatically  operates  and  the 
chair  comes  to  rest  imperceptibly  on  a  cushion  of  oil. 


The  %itter   Chair 


13 


Platform  Raised^  Arm  Dropped^  Back  Pad 
a?id  Head  Rest  Extended 

I\\]'\  platform  and  foot  rest  arc  adaptable  to  patients  of  any  size, 
and  being  of  closed  construction  are  more  satisfactory  from  the 
standpoints  of  operation,  comfort  to  the  patient  and  cleanliness. 


14 


The   %itter    £hair 


y  HE  self-conforming  back  eliminates  the  necessity  of  readjusting  the 
back  pad  or  head  rest  when  the  back  is  lowered  from  the  standard 
to  the  horizontal  or  any  intermediate  position. 


//^^HEN  the  back  is  lowered  from  the  standard  to  the  horizontal  or 
any  intermediate  position  on  chairs  not  having  the  compensating 
back,  it  is  necessary  to  readjust  the  head  rest  and  back  pad  to  insure 
comfort  to  the  patient  and  facilitate  the  work  of  the  operator. 


T^he   ''Rjjter    Chair  15 


Qompcnscit'nig  liack 

The  compensating  back  is  one  of  the  most  important 
features  of  the  Ritter  Chair  for  it  automatically  follows 
the  lines  of  the  body  in  whatever  position  the  chair  may  be 
placed,  making  it  unnecessary  to  readjust  the  back  or  head 
rest  while  patient  is  in  the  chair,  regardless  of  posi- 
tion. ^  The  back  is  hinged  in  such  manner  that  the 
pivoting  point  by  which  the  patient  swings,  namely,  the 
hip  joint,  and  the  hinge  of  the  chair  are  in  proper  rela- 
tion at  all  times,  thus  the  back  and  the  head  rest  automatic- 
ally follow  the  body  and  absolutely  retain  their  relative 
positions,  making  unnecessary  the  readjustment  of  any 
part  of  the  chair  while  the  patient  is  in  it.  ^  By  means 
of  a  compensating  slide  the  upholstered  back  cushion  is 
elevated  to  support  the  small  of  the  patient's  back  as  the 
back  is  reclined,  thereby  providing  the  proper  support, 
eliminating  the  necessity  of  making  additional  adjust- 
ments when  reclining  the  back,  thus  facilitating  the  work 
of  the  operator  and  providing  greater  comfort  for  the 
patient.  *  The  compensating  back  is  equipped  with  a 
drop  forged  steel  lock,  which  is  positive  in  its  operation 
and  so  constructed  that  it  is  absolutely  impossible  for  it  to 
slip.  "  A  very  slight  pressure  on  a  lever  is  all  that  is 
required  to  release  the  lock  and  when  this  pressure  is  re- 
leased it  automatically  locks  again. 

In  raising  the  patient  from  a  reclining  position  it  is 
only  necessary  to  lift  from  the  back  or  head  rest,  as  the 
back  lock  automatically  releases  when  pressure  is  exerted 
from  outside  or  rear  of  lock  and  catches  or  locks,  in  any 
position,  when  pressure  is  removed.  ^  This  enables  the 
operator  t(j  raise  even  a  very  heavy  patient  from  reclining 
to  upright  position  without  the  strain  and  exertion  neces- 
sary to  accomph'sh  the  same  result,  in  chairs  so  con- 
structed that  the  back  must  necessarily  be  raised  and  sup- 
ported witli  one  iiand  and  locked  witii  the  other. 


i6 


T'he   %itter    Qhair 


For  Childre?! 

1  HE  cushion  back  is  mounted 
on  a  suspended  slide  enabling 
instant  adjustments  for  the 
comfort  of  patients  of  any 
size,  and  the  width  of  the  seat 
can  be  varied  as  desired  by 
the  lateral  swinging  move- 
ment of  the  arms. 


y  T  is  possible  to  comfortably 
accommodate  children  of 
any  age,  without  a  special 
seat,  by  adjusting  the  head 
rest,  raising  the  heel  plate, 
lowering  the  back  and  ad- 
justing same  forward  on  the 
seat  and  moving  the  arms 
inward  from  both  sides. 


The   %ijter    ['hair  17 

The  adjustments  automatically  obtained  by  the  use  of 
the  compensating  back  eliminate  the  necessity  of  tilting 
the  seat,  which  is  a  decided  advantage  in  that  the  patient 
is  always  able  to  easily  reach  the  cuspidor,  which  is,  to 
say  the  least,  very  inconvenient  when  the  chair  is 
tilted.  *  The  back  is  suspended  at  three  points  and  is 
absolutely  rigid  in  any  adjusted  position.  ''  The  cushion 
back  is  mounted  on  a  suspended  slide,  enabling  instant  ad- 
justment for  the  comfort  of  patients  of  any  size.  *  This 
slide  also  carries  the  head  rest  extension  slide  and  either 
of  the  slides  may  be  easily  moved  up  or  down  with  the 
slightest  pressure  on  the  tip  of  the  levers,  which  are  auto- 
matically locked  when  released,  enabling  adjustments  to 
be  readily  made  with  one  hand. 

Se/f—yldjusfing  Head  T{est 

The  improved  Ritter  head  rest  is  automatic  in  its  ad- 
justments, the  pads  being  fastened  to  a  swinging  yoke 
and  lock  to  the  yoke  in  eight  distinctively  different  posi- 
tions, permitting  any  conceivable  adjustment.  '^  A  desir- 
able feature  of  the  head  rest  is  the  ball  and  socket  head 
rest  support  by  means  of  which  the  head  rest  is  fastened  to 
the  extension  slide.  *  With  this  ball  and  socket  joint  the 
head  rest  may  be  adjusted  to  any  desired  position  and 
locked  by  the  operation  of  a  single  cam  lever. 

The  construction  of  the  head  rest  cushions  is  such 
that  a  pneumatic  cushion  effect  is  obtained  without  the 
disadvantage  of  using  air. 

Qhildren '  s  l^osifio/i  s 

The  adaptability  of  the  Ritter  Chair  makes  it  possible 
to  accommodate  children  of  any  age  without  a  special  seat, 
for  the  head  rest  may  be  adjusted  to  fit  a  very  small  child 
and  by  lowering  the  back  and  adjusting  same  forward  on 
the  scat  and  moving  the  arms  inward  from  both  sides  it 


"The   %itter    Qhair 


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•The   %\jter    (f//^//^'  19 

takes  but  a  moment  to  lit  comfortably  even  the  smallest 
patient  and  in  so  doing  not  conflict  in  any  way  with  the 
operator  or  his  work. 

The  principal  levers  used  on  the  chair  are  drop  forged 
steel,  which  permits  lighter  construction  and  therefore 
more  graceful  design.  ^  xVll  exposed  parts  of  the  levers 
are  first  copper  and  then  nickel  plated  which  produces 
a  verv  durable  finish. 

The  lower  portion  of  the  arms  are  pressed  steel  stamp- 
ings, grained  mahogany  and  finished  in  enamel.  ^  The 
tops  are  of  genuine  mahogany,  thus  insuring  maximum 
wear  and  at  the  same  time  being  sanitary. 

All  locks  used  ^\\  the  chair  are  positive  in  their  oper- 
ation, are  constructed  of  the  very  best  materials  and  will 
thus  give  maximum  service.  *  The  slightest  pressure 
releases  them  and  they  automatically  lock  when  the  pres- 
sure is  relaxed,  this  being  one  of  the  many  exclusive  fea- 
tures to  be  found  only  on  the  Ritter  Chair. 

Finish 

All  exposed  metal  parts  are  either  nickel  plated  or 
enameled  and  every  precaution  is  taken  to  insure  a  final 
finish  that  will  be  attractive  to  the  eye  and  give  maximum 
service,  the  result  being  that  "distinctively  different"  ap- 
pearance whicli  has  always  been  characteristic  of  Ritter 
Chairs. 


20 


'The   T{ijter    Qhair 


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'The  'Jijjter   (^ha'ir 


21 


The  Ritter  Self-Adjusti7ig 
Head  Rest 


iH  E  improved  self- 
adjusting  head  rest  is 
automatic  in  its  adjust- 
ments, the  pads  heing 
fastened  to  a  swinging 
yoke  and  lock  to  the 
yoke  in  eight  different 
positions. 


11 


The   T^ijter   'Dental  Engine 


All  Cord  Type 

jfT  possesses  all  the  salient  features   found  in   our   previous   models 
combined  with  the  most  modern  principles  of  construction. 


The   T{ijter   T)ental   Cngine  23 


The  "Tetter  T>ental  Cngine 


Q^^ 


HE  Ritter  Model  "C"  Folding  Bracket,  Swivel 
\^  Type,  Electric  Dental  Engine  is  the  result  of 
many  years'  experience  in  the  manufacture  of 
dental  engines.  '  It  possesses  all  the  salient  features 
found  in  our  previous  models,  combined  with  the  most 
modern  principles  of  construction,  thus  insuring  an  engine 
of  pleasing  design,  maximum  adaptability  and  satisfac- 
tory service.  ^  It  is  perfectly  poised,  evenly  balanced 
and  runs  practically  noiseless. 

Eolding  bracket 

The  folding  bracket  is  constructed  of  special  steel,  all 
bearing  surfaces  being  ground  in  an  accurate  manner,  to 
insure  freedom  of  movement  in  opening  and  closing.  The 
poise  of  the  bracket  is  such  that  it  may  be  opened  to  any 
desired  position  and  will  maintain  that  position  without 
danger  of  shifting  and  without  locking.  "  When  com- 
pletely closed  it  is  compact  and  projects  but  a  few  inches 
from  the  wall  and  is  mounted  at  a  height  sufficient  to  clear 
the  cuspidor,  bracket  table  and  radiator. 

Supporting  Take 

The  motor  is  mounted  in  a  supporting  yoke  consisting 
of  two  semi-circular  tubes  attached  to  tlie  supporting 
frame  of  the  bracket.  '  1  he  electric  wires  pass  througli 
these  yoke  tubes  and  terminate  in  two  insulated  connec- 
tif)n  plates  in  each  yoke  tube  elbow.  *  The  current 
passes  from  these  wires  through  the  contact  brushes  direct 
to  the  motor  terminals.     '      With  this  improved  method 


24 


The   Tiitter   T)ental   Engine 


of  construction  there  are  no  wires  to  be  broken  through 
the  constant  turning  of  the  motor  and  the  latter  can  be 
readily  attached  or  dismounted  without  disturbing  any 
wires  or  small  parts. 

Swivel  r^^otor 

Both  the  motor  and  engine  arm  are  swiveled  in  the 
yoke  support  giving  the  outer  end  of  the  arm  and  hand 
piece  a  vertical  range  equivalent  to  that  of  the  modern 
dental  chair.  ^  Therefore,  regardless  of  the  height  of 
the  chair,  the  hand  piece  can  always  be  placed  in  a  posi- 
tion for  convenient  operation,  a  feature  that  is  exclusive 
with  the  Ritter  Engine. 

balance 

The  distribution  of  the  weight  of  the  motor  and  engine 
arm  with  hand  piece  attached  is  such  that  an  exact  balance 
is  obtained  and  consequently  the  arm  can  be  moved  up 
or  down  without  exertion  and  will  remain  in  any  desired 
position  without  being  locked. 

Suspended  Slbow  <^^rm 

This  exclusive  feature  in  the  Ritter  All-cord  Type 
Engine  allows  absolute  freedom  of  movement  and  pro- 


The  TiUter  'T)ental  Engine  25 

vides  a  range  or  reach  of  considerable  distance  without 
putting  any  strain  on  the  hand  of  the  operator.  "  The 
elbow  arm  is  suspended  and  hinged  in  such  manner  as  to 
insure  perfect  flexibility  and  ease  of  movement  at  the 
hand  piece.  ^  This  construction  is  an  extremely  impor- 
tant feature  as  it  afifords  the  operator  a  much  greater  range 
of  movement  than  is  possible  to  obtain  with  any  other 
dental  engine  and  this  range  is  obtained  without  any 
effort  or  the  least  sensation  of  restraint.  ^ 

The  main  belted  arm  makes  it  possible  to  remove  the 
motor  and  other  bulky  parts  as  far  as  possible  from 
patients,  leaving  only  the  parts  of  light  construction  and 
without  mechanical  appearance  nearest  the  patients  and 
therefore  not  likely  to  look  formidable  to  them. 

The  length  of  this  arm  and  its  arrangement  is  such 
that  it  clears  the  bracket  table  or  other  fixtures  and  is 
adapted  to  receive  either  the  all-cord  hand  piece  when 
used  in  connection  with  the  suspended  elbow  arm  or  the 
regular  No.  7  hand  piece  with  cable  and  sleeve,  duplex 
spring  connection  and  slip  joint.  "  The  entire  arm  from 
motor  pulley  to  hand  piece  is  equipped  with  a  non-twist- 
ing belt  device  which  prevents  belt  from  wrapping 
around  the  rods. 

"Motor 

The  construction  of  the  motor  insures  maximum 
efficiency  and  power  with  minimum  current  consump- 
tion. '  The  motor  runs  with  practically  no  noise. 
By  means  of  a  foot  controller  e(]uippe(i  with  a  very 
efficient  locking  feature,  the  speed  may  be  readily  varied 
from  1200  revolutions  per  minute  at  the  lowest  to  3600 
revolutions  per  minute  at  the  highest. 


26 


Ihe   Tiijter   IDental   E'ngine 


"hearings 

The  bearing  bushings  are  made  of  selected  bearing 
bronze  fitted  with  accuracy  and  being  very  long  in 
proportion  to  their  diameters,  wear  is  reduced  to  the 
minimum.  '  These  bronze  bushings  are  entirely  inde- 
pendent of  the  bearing  supports  and  may  be  readily  re- 
newed if  occasion  requires. 

^^rmatiire  Shafts 

The  armature  shafts  are  of  the  best  tool  steel,  tempered 
and  accurately  ground  to  a  mirror  finish  and  are  inter- 
changeable. 

Oiling 

The  improved  self-contained  oiling  arrangement 
eliminates  the  necessity  of  exposed  oil  cups  and  annoyance 
from  this  source  and  insures  positive  lubrication  of  the 
bearings  as  long  as  there  is  oil  in  the  wick,  thus  the 
chances  for  dry  bearings  are  reduced  to  the  minimum. 


^nnatiire  Qonstriiction 

The  most  approved  methods  of 
""s™""  armature  construction  insures  a  smooth 
running  motor,  easily  controlled  and 
BRONZE  giving  maximum  efficiency.  ^  The 
running  balance  test  is  used  to  obtain 
accurate  balance  and  elimination  of 
vibration  at  the  hand  piece  and  insures 
a  finished  product  of  the  best  possible 
construction. 

wick  B  wrapped  entirely  around  the  bronze  bushing  is  thoroughly  saturated  with  oil  and 
wick  A  passes  through  the  bearing  bushing,  one  end  touching  the  shaft,  the  other  in  contact  with 
the  main  wick  B.  When  shaft  is  in  motion,  oil  is  drawn  by  capillary  attraction  from  wick  B,  by 
way  of  wick  A  to  the  interior  of  the  bushing,  thus  lubricating  the  shaft.  Surface  oil  working  out 
at  the  ends  of  bearing  bushing  is  absorbed  by  the  small  wick  C  returning  to  the  main  wick  B, 
thereby  producing  a  complete  circulation  of  oil. 


The   %ijter   -Denial  E'ngine 


27 


Belt  Drive?iy  Cable  Type 

lUV.  pf)ise  of  the  folding  bracket  is  such  that  it  may  be  opened  to 
any  desired  position  and  will  maintain  that  position  without  danger 
of  shifting  and  without  locking. 


'The   letter   T)ental  Engine 


^1 

■^m       SHEET 

STEELL 

CORE       1^^ 

PIP               ARMATURE     SHAFT         'S 

■•4 

SULATI  )N               1/ 

—J 

f 

tinaiii 

^nj 

Sectional  view  of  direct  current  armature  with  commutator. 

"brushes 

Brushes  for  direct  current  engines  are  of  bronze  gauze 
and  for  the  alternating  current  engine,  carbon.  ^  A 
spring  tension  device  on  the  brush  holder  insures  equal 
tension  on  the  brushes,  automatically  maintained,  as  the 
brushes  are  gradually  consumed. 

The  alternating  current  motor  is  provided  w^ith  a  stop 
screw  which  prevents  the  brush  supporting  arm  coming 
into  contact  with  the  commutator, 
should  the  carbon  brush  wear  too 
low. 

T'ulleys 

The  double  motor  drive  pulley 
is  made  of  hardened  steel  with 
grooves  of  a  modified  V  shape  giv- 
ing the  greatest  possible  gripping 
surface  for  the  belt.  ^  The  hubs 
of  the  idler  pulleys  on  the  belted 
arm  are  of  tempered  steel,  accur- 
ately ground  and  polished  and  run 

on  tempered  steel  shafts  which  are  ground  and  then  pol- 
ished to  a  mirror  finish.  ''  These  pulleys  are  provided 
with  oil  retaining  rings  made  of  felt,  insuring  adequate 
lubrication. 


The   Tiijter   'Dental  Cngine 


29 


yi//  Cord  Type 


Belt  Driven^  Cable 


Type 


/F  HEN  the  folding  bracket  is  completely  closed  it  is  compact  and 
projects  but  a  icw  inches  from  the  wall  and  is  mounted  at  a  height 
sufficient  t(j  clear  the  cuspidor,  bracket  table  and  radiator. 


30 


The   Tetter   'Dental  Sngine 


A  brush  wheel  for  cleaning 
burrs,  etc.,  can  be  instantly 
attached  to  the  belt  driven, 
cable  type  engine. 


"Be/t  Compensation 


l^elt  Qiia/'ds 

Belt  guards  are  provided  on  all 
pulleys  to  prevent  the  belt  from  run- 
ning off,  thus  eliminating  the  argu- 
ments that  have  been  used  against 
belt  or  all-cord  type  dental  engines. 


An  exclusive  feature  of  the 
Ritter  Engine  is  its  belt  com- 
pensating device  whereby  by 
means  of  the  construction  and 
relation     of     the     pulleys     and 

hinged  pivots,  the  belt  is  kept  at  a  given  tension  irrespec- 
tive of  the  position  of  the  hand  piece  or  arm. 


A  brush  wheel  for  cleaning  burrs, 
etc. ,  can  be  instantly  attached  to  the  all 
cord  type  engine.  The  guards  can  be 
easily  lifted  when  putting  on  a  new  belt. 


'Belt  ^Adjuster 

A  practical  self-locking  belt  adjuster  is  also  provided 
making  possible  the  most  delicate  adjustment  of  the  belt, 
by  means  of  a  pinion  and  screw  under  the  forward  end 

of  the  arm. 

By  means  of  this  ad- 
juster a  stretch  of  ten 
inches  in  the  belt  may  be 
compensated  for. 


"^he   %ijter   ^Dental  Engine 


31 


Suspejided  Elbow  Arm  fo?^  All  Cord 


Tier  1 71  e 


Cable  a?id  Sleeve  Attach?ne?tt  for  Belt  Driven^ 
Cable  Type  Engine 


32 


The   '^RJjter  T)ental  Cngine 


(Controller 

The  portable  Foot  Controller  has  a  single  lever  pro- 
jecting on  both  sides  of  the  case  by  means  of  which  the 
motor  is  started  and  stopped  and  the  various  speeds  con- 
trolled. ^  Itmay  be  placed 
on  the  floor  in  any  desired 
position,  but  preferably  just 
back  of  the  chair. 


Speed  R^ulator 

When  the  lever  occupies 
the  central  position  no  cur- 
rent flows.  ^  A  slight  movement  of  the  lever  in  one 
direction  will  start  the  motor  running  forward,  a  move- 
ment in  the  opposite  direction  will  operate  the  motor  in 
reverse,  the  speed  of  the  forward  or  reverse  being  regu- 
lated by  the  distance  the 
lever  is  moved  from  the 
center.  ^  The  return  of 
the  lever  to  the  center 
from  either  side  instantly 

stops   tne  engine.      *■       r*OUr  a  spring  device  in   controller  automatically  re- 

speed       regulations       are        turns  the  foot  lever  to  the  center  position. 

provided  for  each  direction  of  rotation. 
I^ocked  or  Free 

By  means  of  two  very  conveniently  located  buttons, 
the  controller  lever  may  be  locked  in  any  desired  posi- 
tion or  returned  to  the  center  automatically  when  pressure 
is  released.  ''  Thus  the  controller  may  be  used  either 
with  or  without  locking  device  and  it  is  a  simple  matter 
to  change  from  one  to  the  other. 


^he  Tijjter   'Dental  Engine 


ZZ 


Qontacts  or  Scg//ie/its 


The  contacts  or  segments,  which  control  the  circuit 
of  the  various  speeds  and  the  starting  and  stopping,  are 
screwed  to  a  piece  of  slate  and  the  connections  between 
the  segments  are  made  of  metal  strips  held  under  the 
heads  of  the  same  screws  that  hold  the  segments  in  place 

on  the  slate.  This 
construction  makes 
it  utterly  impossi- 
ble for  a  poor  con- 
nection to  exist  and 
also  eliminates  the 
use  of  copper 
wires  soldered  to 
the    segments    for 

Front  of  Slate   Piece   used  Back  of  slate  piece  used  in  -    . 

in    controller,     carrying     the        controller.      The  electrical        maKlUg     COnnCC" 

various  segments  for  starting  connections  between  segments 
are  made  by  means  of  copper 
stampings  instead  of  soldered 
wires,  which  construction 
makes  poor  connections  ab- 
solutely impossible. 


and  stopping  the  motor  and 
controlling  the  speeds.  In 
order  to  obtain  lubrication  and 
reduce  wear  to  a  minimum, 
holes  are  provided  in  the  brass 
segments  to  contain  vaseline. 


tions,  which,  to 
say  the  least,  is  far 
from  being  de- 
pendable. 


The  brushes  which  make  contact  on  the  metal  seg- 
ment are  heavy  copper,  fastened  so  that  they  are  self- 
aligning  with  the  surface 
of  the  segment,  thus  in- 
suring a  perfect  contact 
with  a  minimum  amount 
of  wear.  '  To  further 
eliminate  wear  at  these 
pf)ints  the  segments  over 
which  the  brushes  slide 
are  drilled  slightly  to  re- 
tain a  lubricant,  prefer- 
ably vaseline. 


Heavy  copper  buttons  on  the  end  of  the  brushes 
which  rub  on  the  brass  controller  segments  insure 
long  life  and  perfect  contact. 


34 


'The  '^Ritter  1)enial  Engine 


sparking 

A  spark  is  produced  whenever  a  motor  is  stopped  at 
the  point  where  the  circuit  is  broken  and  this  spark  is  of 
such  size  and  intensity  as  to  fuse  all  but  certain  types  of 
the  very  hardest  metals,  for  each  spark  burns  away  some 
of  the  metal,  eventually  destroying  the  segment.  ^  We 
have  overcome  this  objectionable  feature  on  the  alter- 
nating current  controller  by  fitting  same  with  a  piece  of 
platinum  wire,  which  on  account  of  its  high  fusing  point 
is  not  affected  by  the  spark,  and  in  our  direct  current 
controller  the  spark  is  eliminated  entirely  by  the  manner 
in  which  the  controller  is  wound. 

%^sistance 

The  construction  of  both  the  alternating  and  direct 
current  controllers  is  such  that  it  is  impossible  for  any 
wires  to  become  dearranged  and  as  there  are  no  inflam- 
mable materials  used  it  is  absolutely  fire-proof  and  com- 
plies with  all  rules  of  the  fire  underwriters. 


ALTERNATING  CURRENT 


DIRECT  CURRENT 


The  construction  of  the  circuit  breaking  lever  and  the  resistance  and  slate  contact  plates,  in 
both  alternating  and  direct  current  controllers,  insures  maximum  service  with  minimum  trouble. 
Metal  strips  are  used  exclusively  for  making  the  necessary  connections  instead  of  wires  and  the  parts 
as  a  whole  can  be  taken  out  of  the  controller  case  by  simply  removing  four  screws. 


The  'J{ijter  'Dental  Engine 


ZS 


c 


c 


o 


^ 


36 


The  'Rjjter  T>enial  Engine 


'Dustproof 

The  controller  is  absolutely  dust  and  lint  proof  and 
no  foreign  matter  of  any  kind  can  possibly  enter  to  inter- 
fere with  its  proper  working. 

Floor  Qord 

Being  subject  to  unusually  hard  usage,  our  floor  cords 
are  constructed  to  give  maximum  wear,  are  protected 
by  a  very  heavy  insulation,  which  will  comply  with  all 
fire  underwriters  rules  and  in  addition  are  covered  with 
rubber  as  a  protection  from  moisture  and  finally  wrapped 


with  linen  braiding.  ''  All  connections  are  numbered, 
making  it  an  easy  matter  to  put  on  a  new  cord  when  neces- 
sary. ^  The  special  metal  contacts  insure  perfect 
connections. 

The  design  of  our  foot  controller  is  such  that  the 
number  of  wires  in  the  floor  cord  or  cable  is  but  four  in 
the  alternating  current  and  five  in  the  direct  current 
controllers  or  about  one-half  the  number  found  in  con- 
trollers of  other  manufacturers,  thus  decreasing  the 
opportunity  for  trouble  through  broken  wires. 


The   Tijjter   'Dental  S'ngine 


37 


It  is  unnecessary  to  disturb  any  connections  to  remove  the  controller  lever  inside  plate  and 
contact  brushes  from  the  controller  case  for  by  removing  four  screws  same  can  be  lifted  out  to 
renew  the  lubrication  on  the  speed  controlling  segments  which  should  preferably  be  done  once  a 
vear.       Dowel  pins  are  provided,  making  it  impossible  to  replace  parts  incorrectly. 


Wall  "Box 

The  simplified  construc- 
tion of  our  wall  box  elim- 
inates the  necessity  of  screws 
in  putting  the  connection 
plates  together.  ^  These 
plates    simply    slip    over    one 

another  as  shown  in  the  illus- 
trations on  this  page  and  when 
the  cover  is  in  place  it  cannot 
come  apart.  *  All  parts  are 
1^^^  of   metal,    except   the   insula- 

tion in  resistance  box  which  is 


I 


mica. 


Resistance  box  is  used  only 
in  alternating  current  engines^ 
none  being  necessary  on  direct 
current. 


"the   %itter   ^Distributing   Tanel 


The  Ritter  Distributing  Panel 


•zyj.   most  efficient  equipment  that   will  lend  tone  and  dignity  to  the 
appearance  of  any  office. 


The   Tiijter   T^istrihuting   T'anel  39 


The  I^tter    ^Distributing 
Tan  EL 

y^/^^  HE  Ritter  Distributing  Panel,  as  its  name  implies, 
\^     is  a  means  for  the  centralization,  control   and 
distribution  of  electricity  and  compressed  air  in 
their  application  to  dentistry. 

It  is  constructed  with  the  usual  Ritter  thoroughness 
and  high  quality  of  materials,  and  the  careful  attention 
given  to  every  detail  of  manufacture  results  in  a  most 
efficient  equipment  that  will  lend  tone  and  dignity  to  the 
appearance  of  any  operating  room. 

The  distributing  panel  consists  of  a  metal  frame,  fin- 
ished in  enamel,  with  a  iVIexican  Onyx  front,  upon  which 
are  mounted  a  clock  and  various  gauges  and  switches,  by 
which  the  panel  is  operated. 

E'conoi)i\ 

Ritter  Panels  when  no  instruments  are  in  use  consume 
practically  no  electricity,  and  the  hot  air  syringe  and 
electrical  instruments  are  very  economical  to  operate,  as 
they  consume  but  a  few  cents  worth  of  electricity  per  day 
even  though  they  are  in  use  continuously. 

^Jlir  Vanci 

l"he  air  section  of  the  panel  is  hjcated  at  the  t(jp  and 
is  c(]uippcd  with  three  pressure  gauges  and  two  regulators 
for  regulating  and  distributing  the  air  to  the  hot  air 
syringe  and  air  cut-ofT.  '  The  hand  wheels  on  the  air 
regulators  are  hirgc  and  have  knurled  edges,  thus  making 


40  T'he  %ijter  'Distributing   T'anel 

them  easy  to  operate.  ^  The  valves  are  needle  pointed 
with  tapering  seats  and  ground  and  seated  with  infinite 
care  to  insure  positive  closing  and  the  elimination  of 
leaks. 

An  air  filter  is  provided  in  the  air  supply  line  by 
means  of  which  the  air  is  cleansed  before  being  delivered 
to  the  outlet,  thus  insuring  dry,  clean  air  for  delivery 
into  the  patient's  mouth.  ''  A  drain  cock, 
easily  opened,  at  the  bottom  of  the  filter 
makes  it  convenient  to  drain  off  any  con- 
densation of  moisture. 

electric  T*anel 

The  electrical  section  of  the  panel   is 
located  at  the  bottom  and  has  many  desir- 
Air  Filter         ^j^j^  _^^^  unique  features,  all  of  which  have 

been  arranged  for  adaptability,  efficiency,  convenience 
and  safety,  the  latter  being  of  special  importance. 

Safety 

The  main  line  supply  current  is  reduced  to  the  proper 
voltage  for  the  instrument  or  low  voltage  circuits,  by 
means  of  a  regulating  transformer,  the  principle  of  design 
of  which  thoroughly  insulates  the  low  voltage  circuits 
from  the  main  line  supply  current  and  renders  it  abso- 
lutely impossible  for  either  the  patient  or  operator  to 
receive  an  electrical  shock.  ''  The  low  voltage  current 
in  the  instrument  circuit  is  produced  by  magnetic  induc- 
tion (by  means  of  the  above  mentioned  transformer)  and 
there  is  no  metallic  electrical  connection  between  the 
instrument  circuit  and  the  supply  circuit. 

This  method  of  construction  is  used  in  the  Ritter 
Distributing  Panel  as  a  m-atter  of  safety  to  both  the  patient 
and  operator,  for  we  believe  it  is  necessary  that  instru- 


The  Tijjter   'Distributing    T'auel 


41 


ments  for  use  in  the  mouth  of  a  patient  or  in  the  hands 
of  the  operator  should  be  connected  with  a  low  voltage 
current  or  circuit  from  which  it  is  absolutely  impossible 
to  receive  an  electric  shock,  and  this  design  is  the  only 
one  providing  this  safety. 

Fuses 

The  fuses  are  covered  with  caps  made  of  special  in- 
sulating material,  held  in  place  by  an  arrangement  of  our 
own  design  which  insures  proper  connection  even  though 
there  is  a  pronounced  variation  in  their  lengths. 

Sxi'itcht's 

A  master  switch  is  provided  in  the  upper  left  side  of 
the  panel  to  control  the  main  line  current  to  the  panel 
and  a  similar  switch  on  the  upper  right  side  to  control 
current  to  transformer.  ^  Three  branch  circuit  switches 
are  also  provided  on  each  side  of  the  panel  to  control 
the  current  outlet  to  engine,  compressor,  fan,  operating 
light,  etc.,  connections  of  which  are  made  inside  the  panel 
and  each  circuit  is  provided  with  an  individual  fuse, 
easily  replaceable.  ^  The  switches  are  of  the  ''push  and 
pull"  design,  and  can  be  furnished  either  in  the  same 
insulating  material  as  the  fuse  caps  or  in  glass. 

Tllot  j(jg/its 

A  pilot  light  is  connected  in  both  the  main  line  and 
transformer  circuits  to  indicate  when  the  current  is  flow- 
ing. <  These  are  built  flush  with  the  face  of  the  panel 
and  are  provided  with  ground  glass  crystals,  providing 
a  soft  pleasing  light,  without  glare. 

(^/ock 

The  Ritter  Panel  is  c(]uipped  with  a  high  grade  clock, 
which  is  so  arranged  and  connected  with  the  master 
switch  that  it  automatically  turns  off  the  current  at  any 


42 


"l^he   mjjter   Distributing   T'anel 


desired  hour,  which  eliminates  the  possibility  of  the  cur- 
rent remaining  on  when  leaving  the  office  for  the  night, 
It  is  plain,  yet  of  pleasing  appearance  and  provides  a 
conveniently  located  time  piece  in  the  operating  room. 

'[Regulators  for  J^w  Voltage  Qircuits 

Four  regulators  are  provided  for  controlling  the  cur- 
rent to  the  electrical  instruments,  each  one  provided  with 
a  locking  device  so  that  it  can  be  set  at  any  desired  point 
The  amount  of  current  furnished  each  individual  instru- 
ment is  thus  controlled  or  regulated  and  after  the  desired 
amount  of  current  is  obtained  and  the  regulator  locked, 
.there  is  no  necessity  for  the  operator  to  adjust  or  change 
the  current  each  time  the  instrument  is  used.  ^  The 
benefits  of  fixed  regulators  are  readily  apparent  and  the 
locking  feature  prevents  accidental  moving  of  the 
regulator. 

•uiutomatic  Instrument  Holder 

The  automatic  instrument  holder  is  located  immedi- 
ately below  the  panel,  with  wire  connections  made 
through  the  interior  of  the  rack,  eliminating  all  exposed 
wires  and  is  provided  with  five  spring  supporting  clips, 
four  for  the  electrically  controlled  instruments  and  one 
for  the  air  cut-off.  ''  The 
application  of  the  current 
to  the  electrical  instru- 
ments is  controlled  by 
the  simple  movement  of 
taking  them  from  and 
replacing  them  in  the 
spring  supporting  clips, 
which  procedure  auto- 
matically opens  or  closes 
the  electric  circuit. 


'The   "XJj^^r   'Distributing   'Panel 


43 


Call  "Bell  "Buttons 

Two  pearl  push  buttons  are  provided  on  the  face  of 
the  panel  for  call  bell  circuits  to  laboratory,  business 
office  or  any  other  desired  location. 

-ylir  Coiiuect'ions 

A  needle  point  valve  is  placed  at  the  lower  right 
corner  of  the  panel  so  that  supply  from  air  tank  can  be 
shut  off  at  this  point  if  desired. 

JJtiiversal  Type 

The  Ritter  Distributing  Panel  is  universal  in  type 
and  can  be  used  on  all  electrical  currents.  ^  When  the 
supply  or  central  current  is  direct,  it  is  necessary  to  install 
a  rotary  converter  to  convert  the  direct  to  alternating 
current  for  the  low  voltage  instruments. 

Tihtcr  Ti^tary  Converter 

This  is  a  small  motor  which  can  be  installed  in  the 
laboratory  or  other  suitable  place,  which  takes  in  direct 

current  at  one  side  and  delivers 
alternating  current  from  the 
other.  '  It  is  built  with  the 
usual  Ritter  care  and  attention 
to  all  details,  consumes  but  very 
little  current  and  with  ordinary 
care  and  attention  should  oper- 
ate  indefinitelv. 

Interior 

1  he  electrical  portion  of  the  panel  is  mounted  on  a 
swinging  iron  frame  which  opens  to  permit  the  interior 
to  be  exposed  for  inspection.  ^  When  the  panel  is  open 
a  knife  switch  automaticallv  breaks  tlie  circuit  therebv 


44 


The   Tijjter   'Distributing   T'anel 


The  Ritter  Distributing  F ami 


y  HE  construction  of  the  interior  of  the  panel  clearly  indicates  the 
careful  way  in  which  each  detail  has  been  worked  out  to  provide 
for  efficiency,  practicability,  convenience  and  economy. 


'The   fitter   "'Distributing   'Tanel 


45 


The  Ritte?^  Distribut'mg  Pa?iel 


rJ^OUNTED  on 

No.   8   Cabinet 


--J^OUNTED  on 

No.  9   Cabinet 


46 


"The   '^Rijter  T>istributing   T'anel 


The  Ritter  Distributing  Panel 


(J^OUNTED  on  No.  7  Cabinet 


^he   %ljter   ''DiUributing   Tanel  47 


eliminating  any  opportunity  or  possibility  of  receiving  a 
shock  bv  coming  into  contact  with  the  wiring  of  the 
interior. 

All  wiring  is  thoroughly  insulated  and  arranged  so 
as  to  be  readily  accessible. 

A  connection  bar  is  provided  whereby,  by  means  of 
metal  connecting  links,  panel  may  be  instantly  adapted 
for  use  on  current  of  any  voltage  or  frequency. 

The  various  insulaling  blocks  are  made  from  the  best 
material  obtainable  for  the  purpose.  ''  All  metal  parts 
are  accurately  machined  and  finished,  and  are  inter- 
changeable. 

The  transformer  is  constructed  in  accordance  with 
the  most  approved  electrical  practice  and  is  made  entirely 
in  our  factory. 

T>istnbuti)ig  l^ivicl  Qjhifiets 

Ritter  Distributing  Panels  can  be  mounted  directly  on 
the  walls  of  operating  rooms  or  on  panels  or  boards  of 
wood  or  metal.  '  The  ideal  method,  however,  is  to 
mount  same  on  cabinets,  like  or  similar  to  the  illustrations 
shown  on  the  following  pages,  for  the  reason  that  it  makes 
the  equipment  more  compact,  adds  to  its  efficiency,  keeps 
the  instruments  together  and  in  their  proper  place  and 
when  not  in  use  the  cords  and  tubing  are  concealed  in 
base  of  cabinet. 

Cabinets  of  this  style  can  be  placed  in  a  convenient 
place  or  position  in  the  operating  room,  and  as  they  can 
be  obtained  in  various  woods  and  finishes,  it  is  possible 
to  matcli  interior  decorations  and  e(]uipment,  thus  adding 
character  and  tone  to  the  entire  room. 


48  'The   Tetter  ^distributing  T'anel 

One  or  two  Ritter  Spray  Bottle  Warmers  can  be  in- 
corporated in  these  cabinets,  making  the  outfit  complete 
in  every  detail. 

A  simple,  yet  efficient,  take-up  device  has  been  per- 
fected whereby  the  instruments,  when  returned  to  the 
instrument  holder  after  having  been  in  use  are  automati- 
cally drawn  into  the  base  of  the  cabinet,  thereby  con- 
cealing all  cords  and  tubing  and  protecting  them  from 
dust  and  dirt.  ^  This  device  also  adds  to  the  ease  of 
manipulation  of  instruments  attached  thereto. 

The  cabinets  illustrated  on  pages  45-46  are  known  as 
the  Nos.  7,  8  and  9  and  are  made  by  the  American  Cabinet 
Co.  of  Two  Rivers,  Wis.,  and  Rahway,  N.  J.  *  The 
Nos.  8  and  9  have  glass  doors  inclosing  the  panel  and 
the  No.  9  is  arranged  to  accommodate  a  Ritter  Air  Com- 
pressor Unit  in  the  base.  ''  Full  particulars  regarding 
these  cabinets  can  be  obtained  from  and  orders  placed 
with  any  dental  supply  depot  or  the  American  Cabinet 
Company. 


?[/fODERN  equipment  coupled  with  advanced  operative  tech- 
nique offers  to  the  dental  practitioner  the  '■''open  sesame"  to 
a  broader  field  of  usefulness  in  the  care  of  the  oral  cavity^  that 
gateway  to  the  gastro-intestinal  tract  through  which  must  pass 
the  enemies  to  both  health  and  comfort. 


The  Tijjter   Hot   zAir   Syringe  49 


The   Twitter   Hot  -Air  Syringe 

iriTH  %APiD  Heating 

Clement 

A  most  efficient  instrument,  scientifically  constructed, 
light  in  weight  and  easily  held  in  the  hand.  ^  The  angle 
of  the  nozzle  allows  for  ready  access  to  the  interior  of 
patient's  mouth  without  obstructing  the  operator's  vision. 

"Rdpid  Heating  Clement 

The  unique  principle  used  in  the  construction  of  the 
heating  element  is  such  that  the  air  circulates  back  and 
forth  several  times  before  leaving  the  tip  of  the  nozzle, 
which  insures  the  air  being  heated  more  rapidly  than  in 
syringes  where  air  passes  heating  element  but  once. 
The  heating  element  can  be  easily  removed  and  replaced 
in  case  of  necessity. 

Safety 

The  exterior  is  thoroughly  insulated  eliminating  all 
opportunity  of  the  operator's  burning  himself  or  patient, 
even  though  air  be  applied  continuously  and  at  its  maxi- 
mum heat.  <  The  graduated  coil  of  wire  covering  the 
nozzle  gives  protection  to  the  patient's  lips.  -  There 
is  absolutely  no  danger  of  an  electrical  shock  to  either 
patient  or  operator. 

Operation 

A  slight  pressure  of  the  thumb  on  a  push  button  oper- 
ates the  hot  air  syringe.  *  If  cold  air  is  wanted,  the 
button  is  pressed  but  half  way  down.  <  Additional 
pressure  closes  the  electrical  connection  through  the  heat- 
ing element  and  in  a  few  seconds  time  the  desired  temper- 
ature is  obtained  and  same  can  be  maintained  for  an  in- 
definite period. 


50 


"The   Tiitter   Hot   <^ir   Syringe 


Ritter  Hot  Air  Sy?''inge 


PROTECTING 
SPRING 


The  T(itter   iy//r    Cut -Off  51 

T'fotcctifig  Spr///g 

A  protecting  spring  is  provided  for  the  tubing  at  the 
instrument  connection,  which  prevents  the  tubing  break- 
ing or  cracking  at  that  point  by  reason  of  same  being  bent 
at  a  sharp  angle.  ''  This  insures  longer  life  to  the  tub- 
ing and  eliminates  the  possibility  of  the  air  being  shut 
off  wholly  or  in  part  as  often  occurs  when  tubing  is  bent 
at  a  sharp  angle  when  in  operation.  ^  The  tubing  can 
be  readily  replaced  in  a  few  moments  in  case  of  necessity, 
as  both  ends  of  same  .  are  provided  with  threaded 
connections. 

The  I^itter  zAir  Qut-Off  and 
Switch  Handles 

The  construction  of  both  the  hot  air  syringe  and  switch 
handles  is  such  that  neither  the  patient  nor  operator  is 
in  danger  at  any  time  of  an  electrical  shock  or  other 
discomfort. 

Protecting  springs  are  provided  at  the  handle  con- 
nections to  prevent  the  tubing  and  wiring  from  breaking 
or  cracking  at  that  point  by  reason  of  same  being  bent  at 
a  sharp  angle. 

The  tubing  of  the  air  cut-off  can  be  readily  replaced 
in  a  few  moments  in  case  of  necessity  as  both  ends  are 
provided  with  threaded  connections.  ^  Both  the  air 
cut-off  and  switch  handles  are  balanced  and  proportioned 
so  they  can  be  held  in  the  hand  without  inconvenience 
and  used  for  long  periods  without  causing  fatigue. 

The  push  button  type  switch  handle  is  intended  for 
use  with  the  cautery,  which  with  the  transformer  wind- 
ing in  the  Rittcr  Distributing  Panels  and  Unit  E(]uip- 
ments  makes  it  possible  for  these  instruments  to  become 


52 


The  %itter  ^ir   Q^t-Off 


Ritter  Air  Cut-Off  a7td  Switch  Handles 


Push  Button 

Type 

Switch  Handle 


Air  Cut-Off 


rhe   %ltter   ^Air   C^^^'^Vf 


S3 


more  generally  used  than  heretofore  as  this  construction 
permits  the  operator  to  turn  on  the  current  by  pushing 
the  button  switch,  after  the  cautery  is  in  the  mouth  or 

after  having  passed  the  patient's 
vision,  thereby  causing  no  alarm 
to  the  patient  as  would  be  the 
case  if  he  observed  the  white 
'-i^v^^^    -^^  hot   cautery   point   entering   his 

mouth. 


The    sliding    sleeve    switch 

handle  is  intended  for  the  other 

electrical  instruments  in  which 

the  current  is  not  turned  on  and  ofif  as  often  as  the  cautery. 

A  patented  spring  clip  on  the  Ritter  Air  Cut-off  pre- 
vents spray  bottles  from  becoming  accidentally  detached 
or  disconnected  and 
makes  it  unnecessary 
for  the  operator  to 
hold  bottles  in  place 
with  the  consequent 
discomfort  and  in- 
convenience, especi- 
ally when  solutions 
are  used  at  the  high- 
er temperatures. 


yV/£  rare  delight  that  is  experienced  by  a  practitioner  whose 
offices  are  equipped  with  modern  devices  that  make  for  efficiency^ 
as  well  as  safety  and  comfort  to  both   himself  and  patients^  is 
ample  return  for  their  cost. 


54 


Tijjter    Electrical  Instruments 


Ritter   Rlectf^ical  histruments 
For  Distributifig  Panels  a7id   XJnit  Equipments 


A 


B     C 


fi     JU 


Columbia  Distributing  Panel  Instruments 

G — Cautery. 

H — Bulb  for  Antrum  Lamp. 


A — Bleacher  Point. 

B — Gutta  Percha  Excavator  (Left). 

C — Gutta  Percha  Excavator  (Right). 

D— Ball  Point. 

E— Wax  Spatula. 

F — Antrum  Lamp  Holder  with  Mirror. 


I — Bulb  for  Examination  Lamp. 

J — Root  Canal  Drier. 
K — Root  Canal  Drier. 
L — Examination  Lamp,  complete. 


lijjter-    electrical   Instruments  55 

£lectrical  Ixstruments 

FOR  I^TTER  T>ISrRIBUTING  TANEL 

AND  Unit  Equipment 

Qaiitery 

The  uses  of  the  cautery  are  innumerable,  although  it 
is  of  especial  value  in  the  removal  of  tissue,  puncturing 
of  abscesses  and  the  arresting  of  hemorrhages,  for  it  is 
painless  and  its  use  leaves  no  deleterious  after  effects. 

examination  cQamp 

Extreme  brilliancy  without  excessive  heat  is  made 
possible  in  the  Ritter  lamp  by  the  use  of  a  special  fila- 
ment. ''  It  can  be  used  for  operations,  diagnosing  and 
similar  work  the  same  as  the  standard  hand  mirror,  with- 
out giving  any  discomfort  to  the  patient  or  inconvenience 
to  the  operator. 

zAntruDi  J^inip 

Especially  desirable  for  transillumination,  and  for 
diagnostic  work  of  all  kinds,  where  a  confined  spot  of 
light  of  maximum  brilliancy  is  desired.  <  The  bulb  of 
the  Ritter  Antrum  Lamp  is  of  special  shape  with  a  new 
type  filament  which  gives  maximum  brilliancy  with  mini- 
mum heat. 

bleacher  Toi?it 

Extensively  used  for  bleaching  the  teeth  and  for  work- 
ing wax  inlays. 


^6  Tetter   Electrical  Instruments 

T{^ot  Qanal  Tarter 

Drier  points  can  be  inserted  in  the  canal  column  and 
then  heated  or  may  be  heated  beforehand  and  then  in- 
serted, after  which  the  temperature  can  be  regulated  as 
desired.  ^  The  points  of  the  Ritter  Root  Canal  Driers 
are  made  of  silver,  which  is  an  excellent  conductor  of 
heat  and  not  subject  to  corrosion. 

Wax  Spatula 

Used  extensively  for  preparing  and  trimming  wax 
inlays  for  casting,  and  for  removing  crowns  set  with  gutta 
percha  and  other  tough  or  hard  mediums. 

Qutta  T'ercha  Excavators 

A  pair  of  excavators,  one  right  and  one  left,  will  be 
found  very  useful  for  the  removal  of  gutta  percha  fillings 
as  well  as  for  the  insertion  of  the  same  material,  which 
requires  the  maintenance  of  a  uniform  temperature  for 
proper  application. 

"^all  Toint 

This  handy  little  instrument  is  especially  desirable 
when  heated  to  the  higher  temperatures  for  softening  fill- 
ings so  that  they  can  be  readily  removed. 

The  construction  of  the  heating  elements  in  the  Ritter 
Bleacher,  Canal  Drier,  Wax  Spatula,  Gutta  Percha  Ex- 
cavator and  Ball  Point  are  such  that  any  desired  tempera- 
ture can  be  obtained  almost  instantly  and  can  be  main- 
tained for  any  length  of  time  at  the  will  of  the  operator, 
and  are  made  so  that  they  will  give  continued  good  serv- 
ice for  an  indefinite  period  with  ordinary  care  and 
attention. 


%itter   zAir  Filter 


57 


T<1 


ITER   ^yliR  Filter 


(^1^^  ITTER  air  filters  will  be  found  very  essential 

(^    /    /  ^      additions  to  air  lines  not  equipped  with  air 

filters  or  purifiers,   for  they  automatically 

cleanse  the  air  that  is  being  forced  into  the  patient's  mouth 

through  the  hot  air  syringe  and  spray  bottles. 

This  is  especially  true  in  the 
larger  cities  or  in  manufacturing 
districts  where  the  atmosphere  is 
certain  to  be  contaminated  with 
soot  and  dirt  and  the  humidity 
varies  to  a  great  extent.  ^  The 
installation  of  a  Ritter  Air  Filter 
will  remove  all  foreign  matter, 
making  it  possible  to  have  clean 
air  of  a  uniform  humidity  at  all 
times. 
,^  These    filters    can    be    readily 

I         B  attached  to  any  air  line  or  on  a 

I         B  compressor     tank;     they     require 

I         S  practically  no  attention;  cost  noth- 

■         I  ing  to  operate;  will  eliminate  dirt 

I         Wl  interfering   with    the    air    syringe 

^^r^^^  and    spray   bottles    and    keep    the 

^  piping  and  fittings  clean. 

Ritter  Distributing  Panels  and 
Unit  Ecjuipmcnts  are  regularly 
c()uipped  with  filters  of  this  type,  but  in  extreme  cases 
where  there  is  an  excess  amount  of  dust  and  soot  in  the 
air  or  along  the  seashore  where  the  air  is  heavily  charged 
with  moisture,  we  advocate  the  use  of  one  of  our  large 
air  filters  (preferably  attached  to  air  tank)  in  addition 
to  the  small  filter  supplied  with  tlie  panel  and  unit. 


Twitter   Spray   'Bottles 


"BETTER  Spray  "Bottles 

A  combination  of  spray  bottles,  styles  A,  B  and  C, 
together  with  a  tumbler  or  water  glass,  comprises  a  com- 
plete set  for  use  in  either  Ritter  Warmers  or  those  of 
other  manufacture.  ^  Both  the  bottles  and  tips  can  be 
readily  sterilized  by  boiling  in  hot  water,  or  in  the  case 
of  the  metal  tips  by  passing  through  a  flame,  although 
we  recommend  boiling  in  hot  water  or  antiseptic  solution. 

Style  ^ 

The  spray  tube  revolves,  permit- 
ting spraying  at  any  desired  angle. 
The  extension  is  curved  and  the  tip 
being  acorn  shape  makes  it  especially 
desirable  for  spraying  solutions  of 
oil,  water  or  alcohol  between  the 
teeth  and  gums  and  into  pus  pockets. 
Aromatic  or  antiseptic  solutions  can 
be  applied  to  the  mouth  in  the  form 

of  a  very  fine,  soft  spray  and  without  any  possibility  of 

irritation  to  the  gums. 

Style  S 

Equipped  with  an  adjustable  point  making  it  possible 
to  render  a  spray  up,  down  or  forward.  ^  It  is  equally 
suitable  for  oil,  water  or  alcoholic  solutions  as  well  as  for 
cleansing  and  antiseptic  preparations 
and  can  be  used  when  so  desired  for 
spraying  from  any  bottle  or  open 
vessel.  '  The  spray  given  is  not  as 
soft  or  fine  as  from  the  Style  A  bottle, 
but  is  very  essential  and  desirable  for 
any  kind  of  work  where  added  force 
or  a  large  spray  is  necessary. 


'J(ijter  Spray   ''Bottles 


59 


Style  C 

This  style  produces  a  fine 
stream  instead  of  a  spray  or  mist, 
is  supplied  with  a  gold  tip  which 
can  be  bent  to  any  desired  angle, 
and  is  used  extensively  in  pyorrhea 
and  work  of  a  similar  character. 


Tu/nhler 

Can  be  furnished  in  either  clear  or  opal  glass,  the 
former  being  used,  as  a  rule,  for  mouth  washes  and  the 
latter  for  antiseptic  solutions  for  dental 
instruments,  y  They  are  made  of  special 
annealed  glass  that  will  withstand  changes 
in  temperature  and  fit  snugly  the  openings 
in  the  spray  warmer  tops. 


TNSTRUMEN1\S  and  equipment  of  accuracy  and  precision  in 
the  hands  of  the  average  intelligent  operator  are  productive  of 
better  results  than  the  most  skillful  operator  could  accomplish  with 
an  inferior  e(iuipment. 


6o 


The  ^Rijter   Spray   l^ottle    Warmer 


The  I^tter  Spray  Bottle 
Warmer 


Dimensions :  Base  6x6  inches 

\^/  HIS  attractive  apparatus  not  only  provides  a  convenient 
/  '  y  method  of  keeping  aromatic  and  antiseptic  solutions  at 
^^    the  desired  temperature,  but  it  is  an  entirely  sanitary 

method  of  introducing  liquids  into  the  mouth,  contrasting  greatly 

with  the  old  type  hand  syringe. 

It  is  made  of  selected  Mexican  Onyx,  with  polished  nickel  trim- 
mings and  fittings,  with  a  capacity  of  five  spray  bottles  or  tumblers. 

The  three  point  heat  regulator,  connected  w^ith  two  electric 
bulbs,  makes  it  possible  to  maintain  the  contents  of  the  spray  bottles 
at  practically  any  desired  temperature  and  at  the  same  time  furn- 
ishing sufficient  illumination  to  display  the  beauty  of  the  Onyx. 

The  base  is  fitted  with  four  rubber  cushioned  feet  and  is  remov- 
able, making  it  a  simple  matter  to  replace  electric  bulbs  when 
necessary.  Complete  outfit  includes  one  each  styles  A,  B  and  C 
Ritter  Spray  bottles,  complete  with  tips,  one  spray  bottle  with 
screw  cap,  one  clear  glass  tumbler,  two  electric  bulbs  and  seven  feet 
of  silk  extension  cord  with  socket  plug  attached. 


The   'Huter    Unit   Equipment  6i 


I'HE  1{iTTER  Unit  £quipment 


HE  resources  and  experience  of  our  organization, 
coupled  with  valued  advice  from  members  of 
the  profession,  made  possible  the  perfection  of 

the  Ritter  Unit  Equipment,  an  operating  outfit  in  keeping 

with  the  marked  progress  of  dentistry. 

The  complete  operating  equipment,  including  an 
engine,  fountain  cuspidor,  bracket  table,  spray  bottle 
warmer,  compressed  air  appliances,  ionization  outfit  and 
a  complete  set  of  electrical  instruments,  is  placed  in  a 
limited  amount  of  space,  within  immediate  reach  of  the 
operator,  yet  without  the  sacrifice  of  practicability,  con- 
venience or  efficiency. 

The  unit  equipment  will  be  found  equally  practical 
whether  the  operator  has  an  assistant  or  not,  as  ample 
provision  has  been  made  for  an  assistant  to  work  at  the 
left  of  the  chair,  within  instant  reach  of  the  various  elec- 
trical instruments,  spray  bottles,  drinking  water,  cuspidor, 
engine  and  bracket  table  without  interfering  in  any  way 
with  the  operator's  work,  or  these  same  appliances  can  be 
readily  reached  and  used  by  the  operator  without  the 
necessity  of  changing  his  position. 

Tech'stal 

A  metal  pedestal,  beautifully  finished,  contains  the 
various  switches,  controls,  indicators,  instruments,  etc., 
and  all  connections  to  same,  including  electrical,  gas, 
water  and  air,  are  made  preferably  under  the  floor  to 
eliminate  all  tubes,  pipes  and  cords  from  view. 


62 


The   %itter    Unit    Equipment 


The  Ritter   U?iit  Equipment 


Front  View 
f'QUIPPED  with  Clark  No.  55   Single   Bowl   Cuspidor,  Monarch 
Trap  and  Bosworth  Table. 


The  Tiitter    Unit   E'quipment 


63 


The  Ritter  Unit  Equipme?it 


Front  Hiw 

CQL'IPPED  with  White  Porcelain  Sub-Base,  Clark  No.  65  Double 
Bowl  Cuspidor  and  Boswonh  Table. 


64 


The   Tetter    Unit   Equipment 


The  Ritter  Unit  Kquipment 


Side  View 
Equipped  with  Clark  No.  65   Double  Bowl  Cuspidor  and  Bos- 
worth  Table. 


The  'liitter    Unit   E'quipment 


65 


Cng'nie 

A  Model  "C"  Ritter  Engine  is  supported  on  a  swing- 
ing arm  in  correct  position  for  operator,  with  ample 
extension,  both  vertical  and  horizontal,  to  meet  any  con- 
dition that  might  arise.  ''  For  detailed  description  of 
the  Model  "C"  Engine  refer  to  pages  22  to  37. 

Qispido?- 

Single  or  double  bowl  cuspidors  of  the  various  manu- 
facturers can  be  mounted  on  a  supporting  arm  at  the  cor- 
rect height  to  accommodate  patients  of  any  size  irrespec- 
tive of  position  of  chair. 

electric  Instrunieuts  and  o^ir  ^Appliances 

Electric  instruments  and  air  appliances  are  complete 
in  every  detail,  in  fact,  the  many  exclusive  features  of 
The  Ritter  Distributing  Panel  have  been  incorporated 

in  the  Unit  Equipment,  in- 
cluding the  improved  trans- 
former, automatic  instru- 
ment holder,  automatic 
take-up  device  for  cords 
and  tubes,  which  return 
automatically  and  disap- 
pear in  pedestal  when  in- 
struments are  returned  to 
holders.  <  Readily  acces- 
sible receptacles  are  pro- 
vided for  extra  electric  in- 
struments. '  For  detailed 
description  of  electrical  and 

Receptacles  are  provided  for  the  spare  or  extra        COmprCSSCd    air    mStrUmCUtS 
electrical    initruments   so   that    they   are   in    a        fcfcr   tO    patjeS   49    tO    56. 
convenient  place  for  immediate  use. 


^'wm 


^->^^^ 
^^@^ 


66 


The   'IRJJier    Unit   Equipment 


The  Ritter  Unit  Rquipmefit 


yrlhL,  be  found  equally  as  practical  and  efficient  whether  the  operator 
has  an  assistant  or  not,  as  ample  provision  has  been  made  for  an 
assistant  to  work  at  the  left  of  the  chair  within  instant  reach  of 
the  various  electrical  instruments  and  other  appliances,  or  the  same 
can  be  readily  reached  and  used  by  the  operator  without  the 
necessity  of  change  of  position. 


'The   "Kltter    Unit   Cquipment 


67 


The  Ritter  U?iit  Equipme?it 


Rear  V'leiv 

£*QUIPPED  with   Weber   No.  45    Single   Howl  Cuspidor  and  Bos- 
worth  Tabic. 


68 


The   Tetter    Unit    Equipment 


The  Ritter  U?iii  Equipment 


Front   View 

oHOWING  cuspidor,  electric  and  air  instruments  and  regulators,  spray  warmers 
and  bottles,  switches,  gas  cock,  fuses,  ionization  socket  terminal,  ionization 
regulator  and  dial,  air  gauges  for  hot  air  syringe  and  air  cut-ofF,  call  bell  push 
buttons,  etc.,  all  in  a  limited  amount  of  space  within  immediate  reach  of  the 
operator,  yet  without  the  sacrifice  of  practicability,  convenience  or  efficiency. 


The   liuter    Unit   Cquipment  69 

lonizdtiofi  Outfit 

A  complete  ionization  outfit  is  a  component  of  the 
Unit.  '  A  Motor  Generator  or  Motor  Transformer  is 
mounted  on  the  back  of  the  pedestal  to  supply  the  correct 
current. 

A  milli-ampere  meter  at  the  top  of  the  pedestal  is 
in  plain  view  of  the  operator,  below  which  is  a  regulator 
with  graduated  dial ;  the  connection  cords  leading  to 
patient  are  readily  attached  to  a  convenient  socket  in  the 
face  of  the  pedestal.  "  The  ionization  outfit  also  pro- 
vides a  very  safe  means  for  testing  the  vitality  of  pulps 
of  teeth.  ''  For  detailed  description  of  the  Ionization 
Equipment  refer  to  pages  79  to  85. 

Waste  and  Water  Supply  T'ipes 

Waste  and  water  supply  pipes  are  located  mainly  on 
the  outside  of  the  pedestal  and  provide  no  chance  of 
contact  or  interference  with  the  electric  wiring  or 
mechanism  contained  within  the  pedestal. 

Specifications 

Pedestal — Metal  casting,  beautifully  finished  in 
enamel  with  nickel  trimmings. 

Engine — Model  "C  Ritter  all  cord  or  cable  type, 
with  swivel  motor,  suspended  elbow  arm,  belt  adjuster, 
portable  controller,  giving  four  speeds  forward  and  re- 
verse, fitted  with  removable  plug  to  pedestal.  ^  Engine 
can  be  readily  removed  without  detaching  wires  or 
connections. 

Cuspidor — Unique  construction  of  the  supporting 
arm  (containing  waste  water  passage)  insures  sufficient 
drainage  for  both  single  and  double  bowl  cuspidors  and 


70 


"The  Titter    Unit   Equipment 


The  Ritter  Unit  Equipment 


Rear  View 


O  ROWING   gas   cock,   ionization    generator,    full    voltage    branch 
circuit  plug  and  sectional  view  of  air  filter. 


The   "Kifter    Unit    E'quipment  71 


is  arranged  to  take  all  models  of  single  and  double  bowl 
cuspidors  manufactured  by  A.  C.  Clark  &  Co.  and  the 
Weber  Dental  Mfg.  Co.,  which  concerns  furnish  their 
cuspidors,  built  with  all  fittings  ready  to  attach  to  the 
Unit. 

BR.ACKET  Tables — Bracket  tables  of  any  manufacture 
can  be  attached  to  the  double  swinging  bracket  table  arms. 

lOXIZATIOX  Equipaient — A  complete  outfit,  includ- 
ing Motor  Transformer  or  Motor  Generator,  milli- 
ampere  meter,  current  regulator  and  complete  set  of  elec- 
trodes and  needles. 

Compressed  Air  Equipment— Air  filter  and  separ- 
ator attached  to  pedestal.  '  Two  Air  Regulators;  Two 
Air  Gauges;  One  Hot  Air  Syringe;  One  Air  Cut-off; 
Four  Spray  Bottles  (one  each  style  A,  B  and  C,  complete 
with  tips)  ;  One  Clear  Glass  Tumbler;  Four  Spray  Bottle 
Warmers  with  three  point  Heat  Regulators  controlled 
by  switches. 

Electrical  Equipment  —  Automatic  Instrument 
Holder;  One  Examination  Lamp;  Two  Gutta  Percha 
Excavators;  Two  Root  Canal  Driers;  One  Ball  Point; 
One  Cautery;  One  Wax  Spatula;  Three  Switch  Handles 
for  use  with  above  instruments;  one  master  switch  for 
high  voltage  circuit;  one  master  switch  for  low  voltage 
(instrument)  circuit;  Six  switches  for  controlling  branch 
circuits  to  engine.  Ionization  Outfit,  Lathe,  Air  Compres- 
sor, etc.;  Six  Fuse  Receptacles  with  insulated  caps;  Four 
Regulators  with  locking  devices  controlling  low  voltage 
instruments;  One  main  line  Pilot  Lamp,  Two  Call  Bell 
Buttons. 


72 


'The  Hijter  Automatic  <LAir  (Compressor 


The  Ritter  Automatic  ytir  Compressor 


^-f=«id^ 


yyYTY{  special  twenty  gallon  tank,  makes  a  very  efficient  outfit  for 
several  operators  who  are  drawing  their  supply  of  air  from  the 
same  source  or  for  use  in  laboratories  where  considerable  soldering, 
melting  and  casting  is  done. 


The  ^Kijter  ^Automatic  <^ir  Q'ompressor  n\ 


The  I^tter  ^yTuroMATic  <^ir 
Compressor 

^^/ ^  HE  value  of  and  the  use  of  compressed  air  or 
V_y  pneumatics  in  operative  dentistry  has  shown  a 
marked  increase  during  the  past  few  years  and 
this  coupled  with  the  many  uses  to  which  air  under  pres- 
sure can  be  used  in  the  laboratory,  created  a  demand  for 
a  high  grade  air  compressor  outfit  that  would  work  auto- 
matically. <  We  believe  that  the  Ritter  Automatic  Air 
Compressor  has  answered  the  purpose,  for  hundreds  of 
them  have  been  installed  and  are  in  daily  use  (some  under 
the  most  trying  conditions)  in  all  parts  of  the  world. 

The  Ritter  Compressor  is  built  along  strictly  modern 
lines  and  has  many  unique  features  embodied  in  its  con- 
struction which  coupled  with  the  high  quality  of  Ritter 
workmanship  and  materials  results  in  a  finished  product 
that  can  be  relied  upon  to  give  continued  good  service 
and  entire  satisfaction. 

It  is  absolutely  automatic  in  its  operation,  maintaining 
any  desired  pressure  without  attention  and  can  be  used  in 
connection  with  either  The  Ritter  Unit  Equipment, 
The  Ritter  Distributing  Panel,  or  any  type  of  panel  or 
switch  board.  *  Tt  may  also  be  used  in  the  laboratory 
without  a  panel,  unit  or  switch  board  connection. 

A  two  cylinder  pump  is  used,  providing  double  the 
pumping  capacity  of  a  single  cylinder,  since  each  turn 
of  the  drive  wheel  compresses  air  in  both  cylinders,  thus 


74 


The  %itter  zAutomatic  ^ir  Compressor 


The  Ritter  Air  Compressor 


WITH  METAL  COVER 


WITH  GLASS  HOOD 


JJ^YYYi  standard  eight  gallon  tank.  Metal  cover  is  regularly  furnished 
to  enclose  the  motor  and  pump,  or  a  glass  hood  can  be  obtained  in 
place  of  the  metal  cover,  which  exposes  to  view  all  running  parts 
of  the  compressor. 


The  fitter  ^Automatic  zAir  Compressor  75 


the  desired  pressure  is  thereby  secured  in  half  the  time. 
The  consumption  of  electric  current  by  our  compressor 
is  but  slightly  more  than  by  single  cylinder  compressors 
and  its  efficiency  is  demonstrated  by  the  fact  that  it  will 
fill  an  eight  gallon  tank  to  40  pounds  pressure  in  V/^ 
minutes. 

To  eliminate  excessive  heat  (all  compressors  generate 
heat  when  in  operation),  the  cylinders  are  cooled  and 
kept  at  the  proper  operating  temperature  by  means  of 
radiating  flanges  exposed  to  the  air.  <  The  cylinders 
and  pistons  are  accurately  ground;  pistons  are  fitted  with 
three  expansion  rings  to  insure  perfect  compression. 
The  connecting  rods  are  of  bronze  and  equipped  with 
take-up  or  adjustment  devices  so  that  wear  can  be  readily 
taken  up  when  necessary.  ^  The  main  shaft  is  of  drop 
forged  steel,  accurately  ground  to  fit  the  bearings  and 
perfectly  aligned  to  insure  true  running.  ^  The  work- 
ing parts  of  the  pump  are  all  enclosed  and  the  pump  cast- 
ing is  practically  all  in  one  piece,  eliminating  leakage  of 
oil. 

Vahes 

The  valves,  both  intake  and  exhaust,  are  of  the  quick 
acting  type  and  are  noiseless.  ^  They  are  of  special 
metal,  carefully  ground  and  seated,  to  insure  long  wear 
and  eliminate  air  leakage.  ^  The  ports  are  large  in 
proportion  to  the  piston  area,  insuring  rapid  compression. 

Filter 

A  filter  is  provided  at  the  air  in-take  to  prevent  dust 
or  other  foreign  matter  entering  the  cylinders.  ^  The 
filtering  medium  is  absorbent  cotton,  placed  in  a  chamber 
in  the  filter,  which  can  be  opened  instantly  for  the  purpose 
of  renewing  the  cotton. 


76  T^he  Hitter  zAutomatic  <Air  (Compressor 

Oiling  System 

The  compressor  pump  is  oiled  by  means  of  the  Splash 
System  which  insures  thorough  lubrication,  for  each  con- 
necting rod  is  provided  with  a  dipper  at  the  bottom  which 
dips  into  the  oil  as  the  shaft  revolves  and  in  rising  splashes 
oil  throughout  the  chamber  and  all  working  parts.  ^  A 
sight  oil  feed  is  provided  for  convenience,  on  end  of  shaft. 

Automatic  Su^itch 

Air  may  be  maintained  in  the  reservoir  tank  at  any 
desired  pressure  by  means  of  an  automatic  switch  which 
is  constructed  to  trip  the  lever  and  break  the  electrical 
connection,  thus  stopping  the  motor  and  the  compression 


of  air  when  the  maximum  desired  pressure  is  reached. 
When  the  pressure  in  the  tank  falls  to  a  predetermined 
amount  the  electrical  connection  is  again  automatically 
established  and  maintained  until  the  pressure  reaches  the 
maximum. 

The  switch  lever  is  operated  by  pressure  from  a 
diaphragm,  sufficiently  strong  to  insure  positive  operation 
and  quick  action  in  making  and  breaking  the  circuit  there- 
by  eliminating   the   possibility   of   burning   the   contact 


The  ^RUter  Automatic  '^Air  (Compressor  77 

blades.  ''  The  diaphragm  is  made  of  metal  and  can  be 
readily  replaced  if  it  should  ever  be  necessary  by  simply 
removing  a  few  screws  in  the  end  of  the  automatic  switch 
box  and  without  disturbing  any  other  parts. 

The  compressor  is  operated  by  an  electric  motor  of 
high  class  construction,  low  current  consumption  and  is 
in  keeping  with  the  Ritter  Standard  of  construction. 
It  develops  approximately  one-sixth  horse  power  and 
runs    practically    noiseless. 

T>rive 

The  drive  or  transmission  of  power  from  the  motor 
to  the  pump  is  accomplished  by  means  of  a  wide,  flat, 
leather  belt,  running  on  flanged  pulleys,  which  guide  the 
belt  and  keep  same  from  running  ofT.  <  A  self-adjusting 
idler  pulley  insures  proper  tension  on  the  belt  at  all  times. 

The  tanks  furnished  with  our  compressors  are  of  seam- 
less, drawn  steel,  having  a  capacity  of  eight  gallons,  fin- 
ished in  any  of  our  standard  enamel  finishes.  ^  A  metal 
cover  is  provided  to  enclose  the  motor  and  pump. 
This  cover  rests  on  and  is  finished  to  match  the  air  tank. 
A  glass  hood  can  be  furnished  in  place  of  the  metal  cover, 
which  exposes  to  view  all  running  parts  of  the  com- 
pressor. "  Twenty  gallon  tanks  can  be  furnished  in 
place  of  the  8  gallon  size. 

Fittings 

All  fittings  for  the  air  line  are  our  metal  to  metal  cone 
seat  design  which  insures  leak  proof  joints. 


78 


The  %ijter   Tooth    Tester 


The  T{itter  Tooth  Tester 

The  outfit  consists  of  a  transformer,  pencil  electrode, 
cheek  clamp  electrode  and  connecting  wires,  providing 
a  rapid  and  effective  means  for  determining  the  vitality 
of  pulps  of  teeth. 

It  can  be  used  only  when 
connected  to  the  Ritter  Dis- 
tributing Panel  by  attaching 
the  transformer  to  one  of 
the  instrument  switch  handles, 
which  can  then  be  placed  on 
the  bracket  table  or  any  other 
convenient  place. 

The  cheek  electrode  can 
be  instantly  adjusted  and 
causes  no  inconvenience  to  the 
patient.  ^  The  pencil  elec- 
trode point  is  fitted  with  a 
wire  to  be  applied  to  the  tooth 
to  be  tested. 

A  three  point  switch  in 
addition  to  the  twenty  point 

Illustration  about  1  '■,  actual  size  ,  i  -r»  •  -r^  • 

regulator  on  the  Kitter  Dis- 
tributing Panel  gives  a  range  of  sixty  different  degrees 
of  current  making  it  practically  certain  that  the  pulp  of 
the  tooth  to  be  tested  is  devitalized  if  the  patient  fails  to 
experience  a  tingling  sensation  at  one  of  these  sixty  points 
or  degrees. 

The  complete  outfit  weighs  but  a  few  ounces,  is  com- 
pact, easily  handled  and  makes  a  valuable  addition  to  any 
Distributing  Panel  outfit. 


'The  Tiijter  Ionization  Equipment 


79 


The   Twitter   Ionization 
£ouipment 


6'lectrolytic  z^edi cation 

LECTROLYTIC  Medication,  Electro-Steriliz- 
ation, Ionic  Medication,  or  Ionization,  as  it  is 
variously  called,  is  a  comparatively  new  and 
valuable  method  of  treatment  in  which  drugs  are  intro- 
duced into  the  subcutaneous  parts  of  the  body  by  means 
of  an  electric  current,  and  it  has  become  a  very  important 
factor  in  operative  dentistry,  particularly  in  the  steriliza- 
tion and  preparation  of  root  canals  and  treatment  of 
abscesses  and  other  pus  formations. 

The  theory,  technic  and  clinical  application  of  this 
interesting  subject  are  explained  in  detail  in  a  72  page 
clothbound  book  which  we  are  distributing  gratis  to 
members  of  the  profession  upon  request. 

Qurrent  'Regulator 

The  function  of  an 
Ionization  instrument  or 
current  regulator  is  to 
apply  electric  current 
gradually  and  without 
the  slightest  interruption, 
variation  or  break  in  the 
fl(nv  and  to  register  the 
exact  amount  of  current 
flowing.  "  The  Ritter 
Ionization  Current  Reg- 
ulator was  designed  particularly  with  this  object  in  view 


Ritter  I'ortable  Ionization  Current 
Regulator 


8o 


The  Tijjter  Ionization  Cquipment 


and  the  degree  of  subdivision  of  the  regulating  resistance 
has  been  carried  out  to  such  an  extent  that  the  change  in 
current  strength  between  the  divisions  is  not  perceptible 
in  even  the  most  delicate  operations. 

The  gradual  application  of  the  current  is  accom- 
plished by  turning  a  regulator  button.  ^  The  dial  with 
which  the  regulator  is  equipped  is  a  material  aid  in  the 
intelligent  use  of  the  instrument.  ^  This  dial  is  divided 
into  an  arbitrarily  chosen  scale  and  indicates  the  amount 
of  resistance  which  is  cut  out  of  the  circuit. 

The  current  indicator  is  made  expressly  for  us  by  the 
Weston  Electric  Instrument  Company  and  has  a  range 

from  zero  to  ten  milli- 
amperes  with  divisions 
readable  in  1-20  of  a  mil- 
li-ampere.  ''  It  not  only 
indicates  the  current  flow 
but  measures  it  accurate- 
ly. ''  A  correcting  de- 
vice is  provided  whereby 
the  needle  can  be  adjust- 
ed so  it  will  always  rest 
or  remain  at  zero  when 
no  current  is  flowing. 

The  Regulator  may 
be  placed  in  any  conveni- 
ent location,  either  on  a 
small  stand  beside  the 
chair  or  on  the  bracket 
table,  as  it  is  compact  and 
weighs   but  2^2   pounds. 

Connection  cords  of 
ample  length  are  fur- 
nished with  the  regulator  for  making  connection  between 
the  generator,  the  portable  regulator  and  the  patient. 


A — Cheek  Electrode 

B — Flexible  Wire  Needle  Holder 
C — Cup  Electrode 

D — Standard  Needle  Holder 


The  'Jitter  Ionization   Equipment 


electrodes 

Our  cheek  electrode  is  highly  recommended  by  oper- 
ators who  have  used  this  improved  type  of  electrode, 
claiming  that  the  patient  never  complains  of  the  tingling 
sensation  [that  always  seems  to  be  present  with  a  sponge 
type  electrode  when  fastened  to  the  face  or  wTist],  and 
on  this  account  the  current  can  be  raised  to  the  maximum 
("Irritation  Point")   much  quicker. 

The  wire  needles  fit  into  the  standard  needle  holder 
which  may  be  held  in  the  hand  of  the  operator,  or  simply 
laid  in  the  mouth  on  the  rubber  dam  as  some  operators 
prefer  to  use  it.  ''  A  flexible  holder  is  also  provided 
for  the  special  spring  socket  wire  needles. 

Zinc  wire  needles  both  tapered  and  blunt,  adapted  to 


meet  all  conditions,  are  furnished 
always  use  electrodes 
with  the  largest  possible    - 
cross    section    or   size    in    ,      ,  ,,, 
order  to  reduce  the  cur- 
rent   density    per    given 
area;  the  tapered  needle 
may  be  easily  shortened 
until  the  correct  size  or 
diameter  is  obtained. 


''     It  is  advisable  to 


Only  chemically  pure 
zinc  should  be  used  for 
if  it  contains  arsenic  or 
antimony  serious  results 
will  follow.  ''  There- 
fore ordinary  commercial 
zinc  should  not  be  used 
under  any  circumstances. 


TAPERED 





R  I  T  T  E  R 

c;i.r.,uc.iiy  p...<.  z>..t 
NEEDLES  h, 

Electrolytic  Medication 

(IONIZATION! 


;;,    Kll  im  Ul  Nil  Al  Ml  G.  CO 
C; »:c.  I'l„U,Klpl.,. 


HOC.HISII.K 
\;.-rf  Y...I. 


Ritter  Needles  tor  Electrolytic 
Medication 


'     Ritter  wire  needles  in  zinc 


or  copper;  pointed,  blunt  or  flat,  packed  in  books  of  six, 


Face  Electrode 


82  The  '^Rjjter  Ionization  Equipment 

and  special  spring  socket  needles  in  books  of  six  may  be 
secured  from  Dental  Dealers. 

f^  The  cup  electrode  is  used 

to  great  advantage  in  treating 
the  gums  to  alleviate  any  sore- 
ness which  may  be  present 
after  filling  root  canals. 

The    face    electrode    fur- 
nished is  used  particularly  as 
an    active    electrode    in    the 
treatment   of   inflamed   nerve  tissues  of  the  face. 

Qwrent  (generator 

Only  an  electric  current  flowing  constantly  in  one 
direction  of  not  to  exceed  40  volts  is  suitable  for  ioniza- 
tion work. 

Therefore  the  ordinary  lighting  currents  cannot  be 
used  without  some  change.  ^  If  this  supply  current  is 
direct  of  110  or  220  volts  then  some  means  must  be  pro- 
vided for  reducing  it  to  about  40  volts.  ^  This  may  be 
done  by  means  of  a  suitable  resistance,  but  it  is  not  satis- 
factory because  it  leaves  the  patient  and  operator  in  actual 
contact  with  the  main  supply  wires,  and  a  ground  connec- 
tion at  the  chair  through  the  fountain  cuspidor  or  through 
other  means  subjects  both  operator  and  patient  to  the  full 
line  voltage  which  might  result  seriously.  ^  The  small 
amount  of  resistance  in  the  circuit  will  not  prevent  a 
severe  shock  and  most  writers  suggest  the  use  of  a  rubber 
apron  to  prevent  ground  connections.  ''  This  method 
of  reducing  the  voltage  is  not  alone  unsatisfactory  but 
dangerous,  and  it  is  folly  for  anyone  to  take  chances  when 
a  perfectly  safe  method  may  be  employed. 


T^he  'Hijter  Ionization   Equipment 


83 


^{otor  T^ransfonner 

The  Ritter  Ionization  Outfit 
for  direct  current  provides  the  Ritter 
Motor  Transformer  which  is  so  con- 
structed that  not  more  than  40  volts 
can  possibly  reach  either  patient  or 
operator.  ^  It  consists  of  a  direct 
current  motor  with  two  windings  on  the 
armature,  and  two  commutators,  thor- 
oughly insulated  from  each  other. 


Ritter  Motor 

Transformer  for  Direct 

Current 


Ritter  Motor 

Generator  for  Alternating 

Current 


<J)(Cotor  Qeiiej-ator 

On   alternating  current  cir- 
cuits of  110  or  220  volts,  means 
must  be  provided  for  obtaining 
a  direct  current  of  40  volts  from 
the    alternating   current   supply 
mains.    ''    This  is  accomplished 
by  means  of  the  Ritter  Motor 
Generator  which  consists  of  an 
alternating  current  motor  con- 
nected to  a  direct  current  gen- 
erator, both  being  contained  in 
one  case.     ^     The  generator  or  dynamo  is  constructed  to 
generate  40  volts  direct  current  and  has  no  actual  electri- 
cal connection  with  the  alternating  current  motor. 

BY  USING  THE  GENERATOR  THERE  IS 
POSITIVELY  NO  DANGER  OR  POSSIBILITY 
OF  SHOCK  TO  EITHER  PATIENT  OR  OPER- 
ATOR AS  THE  ELECTRIC  ENERGY  FLOWING 
IN  THE  PATIENT  CIRCUIT  IS  PRODUCED 
THROUGH  MAGNETIC  INDUCTION  ENTIRE- 
LY, THERE  BEING  NO  ACTUAL  ELECTRICAL 
CONNECTION  BETWEEN  THE  MAIN  SUPPLY 
CURRENT  AND  THE  PATIP:NT  CURRENT. 


84  '^he  T(itter  Ionization  Equipment 

The  generator  is  practically  noiseless  and  may  be 
located  at  any  convenient  place.  "^  It  is  very  compact 
and  could,  if  desired,  be  placed  in  the  laboratory  or  any 
other  available  place. 

Specifications 

Current  Ionization  Regulator — Handsomely  fin- 
ished in  mahogany  enamel,  polished  nickel  trimmings, 
felt  covered  base,  complete  with  a  10  milli-ampere  meter 
made  especially  for  us  by  the  Weston  Electrical  Instru- 
ment Company,  scale  reading  from  zero  to  10,  graduated 
into  divisions  of  1-20  milli-amperes.  ^  Correcting 
device  projecting  through  dustproof  opening  in  glass 
cover  to  adjust  needle  to  zero  when  no  current  is  flowing. 
Graduated  dial  indicates  amount  of  resistance  cut  out  of 
the  patient  circuit.  '  Length  of  resistance  element  is 
12  inches,  divided  into  1200  sections,  making  the  change 
in  the  flow  of  current  from  section  to  section  absolutely 
imperceptible.  "  Equipped  with  sockets  for  connec- 
tions to  the  generator  and  to  the  electrodes.  ^  Weight, 
iy2  pounds. 

Generator  and  Transformer — The  motor  gener- 
ator and  motor  transformer  are  made  in  our  factories  of 
standard  Ritter  quality  and  efficiency  of  operation,  com- 
pletely enclosed  in  dust  proof  case,  handsomely  finished 
in  enamel,  polished  nickel  trimmings. 

The  motor  generator  for  use  with  alternating  current 
consists  of  an  alternating  current  motor  armature  and  a 
direct  current  generator  armature,  wound  on  one  shaft 
included  in  one  case. 

The  motor  transformer  for  use  on  direct  current  con- 
sists of  a  direct  current  motor  armature  winding  and  a 
direct  current  generator  armature  winding  on  the  same 
shaft  but  not  electrically  connected  in  any  way. 

In  both  cases  there  Is  no  direct  electric  connection 
between  patient  circuit  and  main  line  supply  current. 


The  ^l^tter  Ionization   Equipment 


Bearings  of  both  generators  of  very  best  phosphor 
bronze  with  improved  self-contained  oiling  device  same 
as  used  on  Ritter  Engines.  ''  Brushes  same  as  used  on 
Ritter  Engines.  ^  The  A.  C.  Motor  Generator  weighs 
yiYi  pounds.  ''  The  D.  C.  Motor  Transformer  weighs 
9^^  pounds. 

Wire  Coxxectors — One  double  pair  connectors,  silk 
covered  cord  with  reversible  plug  for  generator  regula- 
tor connections.  ''  One  pair  single  electrode  connectors, 
one  red,  one  green,  for  current  polarity  designation,  con- 
nected to  reversible  plug. 

Electrodes — Face  Electrode — Provided  with  a  con- 
venient size,  mahogany  finished,  wood  handle,  with 
nickel  finished  metal  plate  and  large  knurled  thumb  screw 
in  the  base  to  facilitate  making  the  wire  connections,  plate 
covered  with  three  thicknesses  of  pure  wool  felt  of  the 
very  best  quality,  which  may  be  easily  replaced. 

Cheek  Electrode — The  spring  is  of  the  very  best 
phosphor  bronze.  ''  The  plates  are  threaded  on  the 
ends  of  the  spring.  <  One  plate  is  aluminum,  the  other 
is  insulated  into  which  a  socket  is  inserted  for  the  wire 
connection.  ^  The  spring  is  covered  with  renewable 
rubber  tubing. 

Wire  Needles — An  assortment  of  thirty-six  zinc 
(99  9-107f>  pure)  and  copper  straight,  tapered  and  flat- 
tened ends  for  use  in  both  standard  and  spring  socket 
holder,  packed  in  books  of  six. 

Flexible  Needle  Holder — For  use  with  spring  socket 
needles,  one  end  fitted  to  receive  the  connection  on  the 
wire  cord,  other  fitted  to  receive  the  spring  socket  needle. 

Standard  Needle  Holder — A  hard  rubber  pencil- 
like holder  for  wire  needles,  with  jaw  clamps  operated 
by  turning  upper  {i\\<\  of  holder. 


86 


The   Hotter   Ionization    Cquipment 


The  Ritter  Ionization  Equipment 
For  Direct  Current 


For  Alternating 
Current 


r, 


HE  Ritter  Portable  Ionization  Equipment  illustrated  with  the  proper  electrical  connections  for 
the  apparatus.  Supply  current  to  be  connected  to  the  Generator.  Complete  Equipment 
consists  of  Ionization  Current  Regulator,  Motor  Generator  for  alternating  current  or  Motor 
Transformer  for  direct  current;  face,  cheek  and  cup  electrodes;  flexible  Needle  Holder; 
Standard  Needle  Holder;  one  double  connecting  cord  for  Regulator,  Generator  Connection ; 
one  pair  single  connectors;  Regulator  Electrode  Connections;  36  assorted  zinc  and  copper, 
taper,  blunt  and  flat  needles.      Electrodes,  needles  and  holders  illustrated  on  pages  79  to  85. 


'The  T^ijter  J^aboratory   J^the 


The   T{irTER   J^iBORATORY  J(\iTHE 


O  DENTAL  laboratory  is  complete  without  an 
electric  lathe,  for  this  modern  electrical  appli- 
ance is  used  in  innumerable  ways  in  routine 
work,  increasing  the  capacity  and  efficiency  of  the  average 
laboratory  to  such  an  extent  that  the  lathe  soon  pays  for 
itself. 

The  Ritter  Laboratory  Lathe  is  constructed  with  the 
same  care  which  is  characteristic  of  all  Ritter  products 
and  has  been  designed  to  deliver  the  maximum  amount 
of  service  with  minimum  expense  for  operation  and  main- 
tenance. 

It  is  mounted  on  a  base  with  rubber  feet  well  spread^ 
to  insure  a  firm  foundation  and  a  casing  entirely  encloses 
the  motor,  rendering  it  absolutely  dust  and  dirt  proof. 
The  shaft  is  near  the  work  table  or  bench  so  that  the 


'The  T^ijter  J^aboratory   Ji^the 


hands  can  be  conveniently  rested  on  same  while  polishing 
and  grinding.  ''  Self-oiling  cups  insure  perfect  lubrica- 
tion. ''  The  switch  is  up  out  of  the  dirt,  yet  in  a  con- 
venient position.  <  Both  alternating  current  and  direct 
current  lathes  are  practically  noiseless  in  operation. 

Speeds 

Four  speeds  are  provided  from  1,000  to  3,000  revolu- 
tions per  minute  on  the  direct  current  and  from  1,200  to 

3,600  on  the  alternating 


/ 


Speed  Regulating  Switch  for  Direct  Current 
Lathe.  Graduated  Button  marked  Speed  Reg- 
ulator controls  the  four  speeds,  each  one  being 
indicated. 


current  lathe.  ''  The 
various  speeds  are  con- 
trolled by  a  regulator 
button  conveniently 
placed  on  the  front  of  the 
case.  '  Practically  the 
same  power  is  obtained 
at  all  speeds,  with  but 
little  or  no  variation  and 
are  under  control  at  all 
times. 

'hearings 

The  bearings  are  in- 
terchangeable and  in 
length  equivalent  to  five 
times  the  diameter  of  the 
shaft,  insuring  maximum 
service. 


"^rush  'ijidjustment 


Carbon  brushes  are  used,  which  can  be  easily  adjusted 
and  can  be  readily  replaced  when  necessary.  ^  They 
are  amply  large  and  will  give  long  and  continued  good 
service. 


The  T{ijter  J^boratory   J^ithe  89 

More  than  !«  horse  power  is  developed  by  the  Ritter 
lathe,  rendering  it  sufficiently  powerful  for  any  class  of 
work  required  in  the  dental  laboratory. 

Cconoiuy 

The  amount  of  current  necessary  to  operate  either  the 
direct  or  alternating  current  types  is  less  than  consumed 
bv  a  sixteen  candle  power  carbon  lamp. 

The  shaft  is  made  of  high-grade  hardened  steel, 
ground  to  size  and  fitted  with  hardened  steel  sleeves 
which  in  turn  run  in  bearings  of  the  very  best  metal  for 
the  purpose.  ^  This  construction  insures  long  service 
as  it  is  possible  to  renew  the  sleeves  and  bearing  bushings 
when  they  become  worn  by  long  use. 


CONSTRUCTION  OF  LATHE,  ARMATURE  SHAFT  AND  BEARINGS 

A.  Steel  Sleeve  or  Tube. 

B.  Lumen  Metal  Bearings  in  which  the  steel  tube  revolves  and 

with  it  the  armature. 

C.  Brass  Washer  to  hold  Felt  Washer  in  place,  to  exclude  pumice 

and  other  abrasivet  from  bearings. 
U.       Felt  Washer  placed  in  recessed  end  of  Lumen  metal  bearing  B, 
E.       Screw  to  hold  steel  tube  to  shaft. 


90 


T^he  T{ijter   J^boratory   J^the 


(  OMPLETE  Armature  and  Speed  Regulating  Device  for  Alternating 


Current  Lathe. 


CjENERAL  Construction  of  Alternating  Current  Lathe. 


C^ENERAL  Construction  of  Direct  Current  Lathe. 


T/zc"   '^Ritter   I^iboratory   J^athe  91 

J^ibricatio)! 

Positive  lubrication  is  insured  as  the  bearings  are  oiled 
bv  means  of  special  oil  reservoirs  fitted  with  wicks  which 
supply  the  oil  by  capillary  attraction. 

Finish 

Ritter  Lathes  are  regularly  finished  in  black  enamel, 
with  gold  striping  and  all  exposed  metal  parts  heavily 
nickeled,  presenting  a  pleasing  appearance  and  insuring 
maximum  service. 

£huck  T^mol^ef's 

The  Ritter  Lathe  is  provided  with  chuck  removers 
consisting  of  bronze  nuts  with  handles  attached,  faced 
with  steel  and  mounted  directly  on  a  threaded  bearing 
bushing,  requiring  only  a  slight  turn  to  disengage  the 
chuck.  *  The  removers  work  on  long  bearings  to  insure 
great  length  of  life.  "  The  chucks  on  which  the 
abrasive  and  polishing  wheels  are  mounted  can  be  fitted 
instantly  to  the  tapering  end  of  shaft  and  can  be  as  easily 
removed. 

Eight  Chucks  are  regularly  supplied  with  the  Ritter 
Lathe,  numbers  1  to  6  inclusive  for  holding  the  various 
abrasive  wheels,  number  7,  a  left  handed  taper  screw 
chuck  for  cones  and  brush  wheels  and  number  8,  an 
adjustable  chuck  for  holding  handpiece  burs. 


Lf/^I"^  are  living  in  an  age  where  advanced  learning  demands 
that  dental  equipment  shall  keep  pace  with  the  refinement 
of  dental  technique. 


92 


T'he  Tiitter  Three  Wheel  Qhuck 


The  Tetter   Three   Wheel 
Chuck 


^{  X  /HERE  the  lathe  is  used  for  general  labora- 
V  V  tory  work  the  annoyance  of  changing  the 

chucks  or  wheels  can  be  eliminated  by  the 
use  of  a  three  wheel  chuck,  which  makes  it  possible  to 
have  three  wheels  of  dififerent  materials,  width  and  size, 
mounted  on  one  chuck,  so  that  various  kinds  of  grinding 
can  be  done  in  the  most  efficient  manner. 

The  Ritter  Three  Wheel  Lathe  Chuck,  while  being 
primarily  made  for  use  on  either  the  right  or  left  side 
of  the  Ritter  Electric  Lathe,  can  also  be  used  on  any  lathe 
using  Ritter  Style  Chucks. 


The  Tijjter   Facility    £huck 


9Z 


The  "Jitter   Facility  C^uck 


t^iMM^MMi 


HE  facility  chuck  enables  the  operator  to  keep 
his  polishing  wheels  constantly  mounted  for 
they  can  be  instantly  attached  to  or  removed 
from  the  laboratory  lathe 
while  the  same  is  running, 
thus  eliminating  the  neces- 
sity for  taking  the  chuck 
off  the  lathe,  removing  the 
wheel,  putting  another 
wheel  on  the  chuck,  replac- 
ing the  chuck  on  the  lathe 
or  going  through  any  other 
procedure  usually  em- 
ployed in  making  these 
changes.  ^  The  facility 
chuck  can  remain  perma- 
nently attached  to  the  lathe 


To  release  the  threaded  taper  spindle  while 
motor  is  running,  grasp  outside  ot  chuck  shell 
with  one  hand,  as  shown  above,  then  immedi- 
ately push  same  forward,  after  which  the  taper 
or  can  be  instantly  removed  spindle  can  be  removed  by  puUing  it  out  of  the 
if    ^n    rlp<;irprl  chuck  with  the  other  hand. 

The  body  of  the  facility  chuck  is  made  of  phosphor 
bronze  with  a  taper  bore  to  fit  the  taper  of  the  shaft. 
The  opposite  end  has  a  steel  sleeve  lining  to  prevent  wear 
by  constant  interchanging  of  spindles.  "  The  interior 
of  the  chuck  contains  threaded  steel  jaws,  the  action  of 
which  is  governc(i  by  the  sliding  movement  of  the  chuck 
shell;  by  pushing  the  chuck  shell  forward  the  jaws  are 


94 


T^ijter  J^boratory  J^the   Qhucks 


extended  and  the  spindle 
easily  removed  and  when 
released  the  shell  is  in- 
stantly returned  to  normal 
position  by  means  of  a 
spring. 

Four   arbors   are   fur- 
nished   with    each    facility 
„  ,    .     ^,  ,,       ,    ,    ,  „       •    .       chuck  to  provide  for  keep- 

Releasing   hold  on  chuck  shell  permits  it  to  ^  '^ 

automatically  return  to  its  normal  working  posi-    jng    that    UUmber    of    pollsh- 
tion,  thus  permitting  another  taper  spindle  to  be  , 

applied  without  stopping  the  lathe.  crs    mouuteQ    permanently. 


TETTER    J^BORATORY 
J^THE    (JHUCKS 


These  eight  chucks  are  regularly  supplied  with  the 
Ritter  Laboratory  Lathe.  Numbers  1  to  6  for  holding 
various  abrasive  wheels.  No.  7,  left  handed  taper  screw 
chuck  for  cones  and  brush  wheels.  No.  8,  adjustable 
chuck  for  holding  handpiece  burs.  No.  1  right,  hub 
%"  in  diameter.  No.  2  left,  hub  %"  in  diameter.  No.  3 
right,  hub  Ke"  in  diameter.  No.  4  left,  hub  Vxq  in  diame- 
ter. No.  5  right,  hub  /4"  in  diameter.  No.  6  left,  hub 
%"  in  diameter. 


"^tter  Hand-Tiece  -Attachment 


95 


Hand-Tiece   ^Attachment 

for  %itter  I:;jboratory   Ji\ithe 


HIS  attachment  consists  of  a  fitting  which  en- 
ables a  flexible  shaft  to  be  operated  with  the 
lathe  in  connection  with  the  usual  engine  hand- 
piece, providing  a  most  convenient  and  practical  means 
of  using  the  smaller  dental  engine  instruments  in  the 
laboratory  for  innumerable  kinds  of  work  such  as  finish- 
ing plate  work,  for  touching  up  articulation,  for  grinding 
teeth  and  bridge  work  and  trimming  and  finishing  after 
soldering.  ^  'i'he  attachment  readily  fits  on  the  taper 
^ni\  iA  the  lathe  shaft  and  is  applied  and  removed  as 
(juickly  as  one  of  the  lathe  chucks. 


S6 


T(ijter  Six  \)olt  Storage  liatteries 


"BETTER  Six  Volt  Storage 

"Batteries  for  Operating  1{£tter 

Engines  and  J^thes 


/^^<fX^  TORAGE  Batteries  for  the  operation  of  our 
\Z^  engines  and  lathes  are  intended  for  use  in 
localities  where  no  supply  current  of  elec- 
tricity is  available  during  the  day.  ''  Ritter  Engines 
and  Lathes  for  use  on  battery  current  are  constructed  to 
operate  efficiently  and  at  minimum  cost,  and  when  the 
batteries  are  properly  installed  and  cared  for  the  service 
rendered  will  be  found  very  satisfactory. 


Ritter  Six  Volt  Storage  Battery,  which  will  operate  both  the  engine  and  lathe. 


T{ijter  Six  X'o//  Storage  ''Batteries  ^y 

The  'lijftcr  Sfonige  ^Battery 

Ritter  storage  batteries  are  made  for  us  by  one  of  the 
leading  battery  manufacturers  universally  known  for  the 
exceptional  high  quality  of  their  product  and  every  bat- 
terv  is  covered  by  their  broad  guarantee  which  insures 
satisfaction  to  the  purchaser. 

Qharg'nig  from  T)irect  Qurrciit 

In  some  localities,  Electric  Light  Companies  supply 
110  volt  direct  current,  but  at  night  only,  under  which 
circumstances  the  batteries  can  be  charged  during  the 
night  and  be  available  for  running  the  engine  and  lathe 
during  the  day. 

It  is  necessary  to  place  a  resistance  in  the  path  of  the 
charging  current  to  prevent  too  great  a  flow  of  electricity 
and  a  simple  knife  switch  should  be  provided  to  cut  ofip 
the  current  after  the  batteries  are  charged,  as  indicated 
when  the  solution  begins  to  bubble  freely. 

Glass  jars  are  used  with  Ritter  Batteries  for  it  is  im- 
portant that  the  same  be  kept  well  filled  with  the  acid 
solution,  which  can  be  readily  ascertained  when  glass 
jars  are  used,  but  is  rather  difficult  with  the  sealed  type  of 
batteries  such  as  used  in  automobiles. 

C^iiJf'gifig  from  <LAltcniating  Quir/it 

The  charging  current  for  batteries  must  always  flow 
in  the  same  direction  and  as  alternating  current  changes 
its  direction  or  flow  many  times  each  minute,  it  is  not 
suitable  for  charging  purposes  until  it  has  been  trans- 
formed into  direct  current,  for  which  purpose  a  rectifier 
is  necessary  to  receive  the  alternating  current  and  trans- 
form it  to  direct  current. 


98 


^Rltter  Six  \)olt  Storage  'batteries 


The  %itter  T^ectifier 

The  Ritter  Rectifier  contains  but  seven  parts,  con- 
sisting of  a  frame  to  hold  the  outfit;  a  cut-out  switch  to 
control  the  supply  current;  a  transformer  to  reduce  the 
current  from  1 10  or  220  volts,  as  the  case  may  be,  to  the 
proper  voltage  to  charge  the  battery,  an  ammeter  to  show 
the  amount  of  current  the  rectifier  is  delivering;  a  recti- 
fier receptacle  to  hold  the  solution;  the  electrolyte  and 
aluminum  electrode.  ^  The  only  care  that  the  rectifier 
requires  is  to  clean  the  receptacle  containing  the  solution 
occasionally,  with  diluted  sulphuric  acid. 

The  solution  and 
aluminum  electrode 
should  be  replaced  every 
three  or  four  months,  the 
time  depending  upon 
how  often  the  rectifier  is 
used  to  charge  the  bat- 
tery. ''  When  a  renew- 
al is  necessary,  both  the 
chemical  for  the  solution 
and  the  aluminum  elec- 
trodes can  be  obtained  of 
any  dental  dealer  at  a 
very  nominal  cost. 

(^ost  of  operation 

Ritter  six  volt  engines 
consume  from  2^^  to  5 
amperes  of  current  ac- 
cording to  the  load,  so 
that  they  would  operate 
from  one  charge  of  the 
However,  as  the  battery 


Ritter  Rectifier  and  Six  Volt  Storage  Battery 


battery  for  five  or  six  days,     f 


'^Rijter  Six  \.^olt  Storage  ''Batteries  o^ 

should  never  be  entirely  exhausted  it  is  advisable  to 
charge  the  same  several  times  each  week  in  accordance 
with  the  directions  accompanying  each  outfit. 

The  Ritter  six  volt  laboratory  lathe  consumes  from 
six  to  seven  amperes  of  current  or  practically  double  that 
of  the  engine. 

Assuming  that  the  average  practitioner  uses  the  engine 
two  hours  and  the  lathe  one  hour  each  day,  the  total  con- 
sumption of  current  from  the  batteries  would  be  approxi- 
mately fifteen  ampere  hours  making  the  cost  of  operation 
of  the  engine  about  l^/^c  per  hour  and  the  lathe  3c  per 
hour,  figuring  the  supply  current  at  an  average  cost  of 
12c  per  kilowatt  hour. 


yds  an  aid  in  the  practice  of  dentistry^   modern   equipment  is 
essential  and  in  ejficient  dentistry  a  necessity. 

The  value  of  electricity  and  compressed  air  as  operative  agents 
is  unquestioned.  They  are  not  considered  an  unnecessary  addition 
to  equipment  nor  a  mere  convenience^  for  both  time  and  experience 
have  demonstrated  their  positive  need  for  certain  classes  of  work 
that  were  heretofore  impossible  to  perform  without  their  aid. 

The  electric  engine^  lathe^  air  compressor  and  other  modern 
equipment  have  become  just  as  essential  in  the  average  practitioner  s 
daily  work  as  the  dental  chair  itself. 


lOO 


^Vacuum   Attachment 


Vacuum  ^Attachment 

For  T^ttei'  ^Automatic  At?'  Compressor    Unit 


ANY  practitioners  are  using  vacuum  in 
their  practice  for  removing  blood,  chips 
and  waste  matter  from  teeth  and  all  parts 

of  the  oral  cavity,  for  casting  inlays,  for  massaging  and 

in  the  treatment  of  pyorrhea. 

By  the  addition  of  an  extra 
air  tank  and  a  few  fittings  The 
Ritter  Air  Compressor  Unit 
can  be  used  both  for  deliver- 
ing compressed  air  and  for 
creating  a  vacuum  and  wher- 
ever these  outfits  have  been 
installed  they  have  given  en- 
tirely satisfactory  service. 

To  create  vacuum  in  the 
Vacuum  tank,  valves  one  and 
three  are  closed  and  valves 
two  and  four  are  opened. 
Approximately  2^  minutes 
are  required  to  create  a 
vacuum  of  24  inches  and  5 
minutes  for  26  inches. 

To  maintain  the  vacuum,  valve  two  is  closed  and  one 
and  three  are  opened,  after  which  four  is  closed,  in  which 
position  the  compressor  will  continue  to  run  forcing  air 
into  the  compressed  air  tank,  provided  the  pressure  in 
same  is  below  the  minimum,  30  pounds.  ^  If  above 
minimum  the  pump  will  automatically  stop. 

When  the  desired  vacuum  is  obtained  the  motor  is 
stopped  either  by  opening  the  main  switch  or  by  cutting 
out  the  vacuum  tank  by  means  of  the  valve  as  explained 
above,  for  the  motor  will  not  stop  automatically  when 
creating  a  vacuum. 


'The   %ijter   Siib-T^ase 


lOI 


I'UE    %I^TTER    SUB-'BASE 

For   The  "T^J^tfer   Unit  Equipment 


COn 


ITTER  white  porcelain,  enameled  sub-bases  are  very 
(^  J  J  ^  durable,  can  be  readily  cleaned.give  a  finishing  touch 
^-^  ^-^  to  the  base  of  the  unit,  and  protect  the  finish  of  same, 
for  the  porcelain  is  not  affected  by  water  and  will  not  readily  chip, 
mar  or  scale. 

When  it  is  necessary  to  install 
the  unit  with  piping  exposed 
above  the  floor,  the  sub-base  is 
absolutely  essential  and  makes 
the  installation  a  simple  matter, 
as  outlets  are  provided  in  the 
sub-base  for  the  piping  and  the 
height  of  same  gives  ample  room 
in  which  to  make  all  connec- 
tions. 

Ritter  Sub-Bases  are  fur- 
nished in  three  different  styles 
to  provide  for  various  methods 
of  installation  and  we  recom- 
mend the  use  of  one  with  every  Unit  Equipment. 

Style  A — For  piping  that  is  run  through  the  floor  or  concealed. 
See  illustration  of  unit  with  style  A  sub-base  on  page  63. 

Style  B— Where 
pipes  are  exposed 
above  the  floor,  run- 
ning from  the  wall 
and  entering  unit  at 
the  back. 

Style  C— For  pipes 

exposed   above   the 

floor,   running   from 

GAS^^    \X^^//    //^fM-^  the  wall  and  entering 

WATER  end  of  unit. 

SUPPLY 


GAS 

WASTE'PIPE/  ^^  ELECTRIC 
WATER  AIR  CONDUITS 
SUPPLY 


Style  C 


Style  B 


I02 


Tiijter   Engine    '^elts 


TETTER  Engine  "Belts 


( f^  O  obtain  maximum  power  and  efficiency  from 
\^_J  engines  of  our  manufacture  it  is  necessary  that 
proper  belts  be  used,  since  the  grooves  in  the 
Ritter  Engine  Drive  Pulley  Wheels  are  of  such  shape 
and  construction  that  if  the  belt  is  properly  shaped,  same 
will  have  a  large  bearing  surface,  thereby  insuring  maxi- 
mum power  and  minimum  wear. 

Ritter  Engine  Belts  are  made  to  meet  these  conditions. 
They  are  strong  and  supple,  because  made  of  the  finest 
sea  island  cotton,  with  a  solid  core  and  a  closely  woven 
covering,  thereby  eliminating  practically  all  stretching. 

Perfect  splicing  insures  the  belt  passing  over  the 
pulleys  without  jar,  in  fact,  with  the  same  freedom  as  the 
body  of  the  belt  and  as  they  hug  the  pulleys  tightly  and 
do  not  slip,  it  insures  added  life  to  the  pulleys  and  belt 
and  power  from  the  engine. 

Ritter  Belts  are  packed  in  readily  distinguishable 
cartons  and  are  carried  in  stock  by  all  dental  supply 
dealers. 


"Kl' 


liter   Cngine    Oil 


103 


"J^ITTER    eNGINE    OiL 


ROPER  lubrication   is   absolutely   necessary  to 
obtain  maximum  service  from  an  engine,  lathe 
or   handpiece,    for   contrary   to   the   generally 
accepted  belief,  all  oils  do  not  lubricate. 

Rittcr  Engine  Oil  is  a  perfect  lubricant,  because  it 
possesses  the  proper  viscosity  to  give  adequate  lubrication 
and  at  the  same  time  gets  into  fine  interstices,  such  as  will 
be  found  on  Ritter  Engines,  Lathes  and  engine  hand- 
pieces. 

Ritter  Oil  is  light  amber  in  color,  is  agreeably  per- 
fumed and  will  not  congeal  nor  separate.  '  Sold  only 
in  sealed  bottles,  packed  in  cartons  and  can  be  obtained 
of  any  dental  supply  dealer. 


I04 


'^Jjter   <LAir  Fittings 


I^TTER  ^iR  Fittings  and 
"Block  Tin  Tipe 


HE  construction  of  the  pipe  lines  for  compressed 
air  is  equally  as  important  as  the  correct  instal- 
lation of  the  Unit  Equipment,  Distributing 
Panel  or  Air  Compressor,  for  leakage  in  air  lines  is  a 
source  of  both  expense  and  trouble,  often  causing  a  com- 
pressor to  do  double  duty  in  order  to  maintain  the  re- 
quired air  pressure.  ^  Ritter  Metal  to  Metal  Cone  Seat 
Air  Fittings  and  Block  Tin  Pipe  insure  an  equipment 
that  will  be  air  tight,  not  afifected  by  atmospheric  changes 
and  with  ordinary  care  and  attention  will  last  for  an 
indefinite  period. 

Air  Fittings  with  air  passages  of  reduced  area  cause 
annoyance  and  trouble  when  instruments  are  used  requir- 
ing a  considerable  volume  of  air  for  their  proper  manipu- 
lation. ^  Ritter  Fittings  have  air  passage  of  the  same 
size  as  the  air  lines,  consequently  no  greater  pressure  is 
needed  to  force  air  through  the  air  fittings  than  through 
the  air  lines  themselves. 

Ritter  Couplings  for  attach- 
ing block  tin  pipe  to  Ritter 
Fittings  are  constructed  with  a 
cone  shape  end  which  enters  a 
socket  in  the  fitting  after  which 
the  two  parts  are  firmly  com- 
pressed together  by  means  of  a 
nut,  producing  a  permanent  air 
tight  joint  which  will  effective- 
ly hold  air  pressure  and  is  not 
affected  by  atmospheric  changes. 


A,  cone  shaped 
ferrule  soldered 
on  tubing  which 
enters  the  cone 
shaped  opening, 

B,  after  which 
A  and  B  are 
drawn  together 
by  means  of  tlie 
hexagon  nut,  C, 
making  an  air 
tight  joint  with- 
out washer  or 
packing. 


T(ijter   lylir   Fittings  105 

Ritter  Air  Valves  are  constructed  with  an  indicator 
valve  handle  which  opens  and  closes  with  perfect  ease 
and  which  can  be  adjusted  to  take  up  any  wear  on  the 
valve  seats. 

Ritter  Air  Cocks  are  all  of  the  needle  valve  type  which 
permits  very  accurate  adjustment  and  makes  possible 
compensation  for  any  wear  of  the  valves.  <  Ritter  Pres- 
sure Reducing  Regulators  can  be  adjusted  to  any  desired 
pressure  and  the  same  maintained  regardless  of  changes 
of  pressure  in  air  tank. 

All  Ritter  Air  Fittings  have  adjustable  Wall  Plates, 
so  that  the  air  openings  may  be  set  to  point  in  any  desired 
direction,  up  or  down,  right  or  left  or  straight  out. 

Ritter  Block  Tin  Pipe  is  an  ideal  material  for  air  line 
work  because  moisture  has  no  effect  upon  it,  it  can  be 
made  air  tight  and  being  very  flexible  can  be  bent  in  any 
shape,  thus  making  the  laying  of  pipe  lines  a  compara- 
tively easy  matter.  *  Copper  and  brass  pipe  are  very 
unsatisfactory  for  the  reason  that  the  moisture  which 
forms  in  all  air  lines  corrodes  these  metals  rendering 
them  unsanitary.  ^  Iron  pipe  is  practically  worthless 
owing  to  its  tendency  to  rust  as  well  as  from  the  fact  that 
it  is  almost  impossible  to  make  air  tight  joints. 

Ritter  Block  Tin  Pipe  can  be  procured  In  various 
lengths  with  connections  soldered  thereon,  making  it 
entirely  possible  for  anyone  to  construct  the  average  air 
line  without  any  special  tools  other  than  a  wrench  or 
without  previous  experience  in  the  work. 


n 


Universal  Tec  Fitting  for  running 
a  branch  off  main  line  pipe.  /  Out- 
let may  be  placed  up,  out  or  down. 


io6 


T(itter   zAir   Fittings 


Elbow,  used  at  end  of  air  line,  so 
special  metal  tubing  can  be  run  to 
panel  instead  of  continuing  ordinary 
block  tin  pipe. 


Double  Threaded  Nipple  for  con- 
necting ends  of  air  line,  to  be  used  in 
connection  with  Union  Coupling. 


Plug,  used  in  connection  with 
union  coupling  for  closed  end  of  air 
line. 


Single  Threaded  Nipple,  used  in 
extending  an  existing  air  line,  fitted 
with  a  union  coupling. 


Union  Coupling,  small  end  to  be 
soldered  over  air  tubing  and  by  means 
of  nut  it  can  be  fastened  to  air  fitting 
without  using  washers. 


Union  Elbow  Coupling  with  Com- 
bination Ferrule  and  spring  hose  pro- 
tector, for  hose  connection  for  attach- 
ment to  any  of  our  air  fittings  with 
outlet  up  or  down. 


'Jijjter   zAir   Fittings 


107 


«3Q 


Cap  A  Hi,  complete  with  plug,  used 
to  close  openings  in  air  fittings. 

Ferrule  and  Sprincj  Hose 
Protector,  for  use  on  our  air 
fittings.  "  Frayeci  ends  of 
hose  are  covered  and  spring 
prevents  hose  from  breaking. 

Hose  Tip,  for  attaching  hose  to 
connections  and  also  used  in  conjunc- 
tion with  spring  hose  protector. 


Terminal  Valve,  for  use  in  the 
laboratory  or  operating  room  or  at 
the  end  of  an  air  line. 


Terminal  Falve  with  Pressure  Re- 
el 11  ein^  Re  (J  III  at  or  and  Gauge,  to  be 
placed  on  end  of  air  line  for  the  pur- 
pose of  supplying  air  pressure  lower 
than  maximum  tank  pressure.  *  By 
means  of  a  hand  wheel  pressure  can 
be  adjusted  to  the  desired  amount 
shown  on  the  gauge.  *  The  valve 
handle  may  be  placed  at  the  top,  bot- 
tom or  either   side. 


Branch    Cock   Fillings  are  uicd  ivhen  several 
outlets  are  desired  on  same  line  of  pipe. 


Ihaui  li     (Jock^ 
down. 


hose     connection 


io8 


^RUter   zAir   Fittings 


Branch  Cock,  hose  connection  out. 


Branch  Cock,  with  pressure  reduc- 
ing regulator  and  gauge,  to  be  placed 
in  the  main  line  pipe  for  the  purpose 
of  supplying  air  pressure  lower  than 
maximum  tank  pressure.  y  By 
means  of  the  hand  wheel  the  pressure 
can  be  adjusted  to  the  amount  desired 
as  shown  on  gauge. 


Double  Branch  Cock  fittings  are  used  ivhen 
se-veral  outlets  are  desired  on  same  line  of  pipe 
ivith  tivo  hose  outlets  at  each  location.  They  can 
also  be  used  on  end  of  air  line  by  closing  one  pipe 
opening  ivith  our  Cap  Nut. 


Double    Branch    Cock    with    two 
hose  outlets  pointing  out. 


Double    Branch    Cock    with    two 
hose  outlets  pointing  down. 


Tiifte?-   lAir   Fittings 


109 


Pressure  Reducing 
Regulator  and  Gauge 
with  two  hose  outlets 
pointing  down. 


Air  Regulator — The  importance  of  being 
able  to  control  air  preaure  is  of  great  "value, 
therefore  our  fittings  are  pronjided  ivith  a 
reducing  feature  so  that  an  air  regulator 
can  he  fitted  to  the  terminal  -valve  or  branch 
cock  at  anf  time. 


Gauge — A  gauge  is  necessary  to 
accurately  determine  the  air  pressure. 
Ritter  gauges  are  of  high  quality  and 
are  accurate  in  registration. 


Gauge  and  Tee — This  combina- 
tion supplies  a  convenient  method  of 
determining  pressure  on  air  lines  at 
any  point. 


I  lO 


Tetter  ^ir   Fittings 


To  Extracting  Room 


"\ 


To  Distributing  Panel,  Switchboard  or 
Unit  Equipment 


T*ipe  'Diagram 

Showing  three  air  outlets  with  compressor  unit  in 
laboratory  connected  at  end  of  air  line.  ^  Outlets  can 
be  arranged  in  different  rooms,  one  near  the  bench  in 
laboratory  with  a  pressure  regulating  valve,  one  to  unit 
equipment  or  distributing  panel  in  operating  room  and 
one  for  extracting  room  with  pressure  regulating  valve. 


Index 


Page 

Air  Cut-OiiF 51-53 

Air  Compressor   72-77 

Air  Filter 57 

Air  Fittings   104-109 

Antrum  Lamp 55 

Ball    Point 56 

Bleacher    Point 55 

Block  Tin  Pipe ■ 104-105 

Cauterv 55 

Chair  ' 7-21 

Code    Index 112 

Distributing    Panel 38-48 

Electrical    Instruments 54-56 

Engine    22-37 

Engine    Belts 102 

Engine  Oil 103 

Examination    Lamp 55 

Facility    Chuck 93-94 

I'oreword    3 

General    Information 5-6 

Guarantee 4 

Gutta  Percha  Excavator 56 

Hand  Piece  Attachment 95 

Hot  Air  Syringe 49-50 

Index    Ill 

Ionization  Equipment 79-86 

Laboratory    Lathe 87-91 

Laboratory  Lathe  Chucks 94 

I^ipe    Diagram 110 

Root  Canal  Drier 56 

Spray  Bottles 58-59 

Spray  Bottle  Warmer 60 

Storage  Batteries 96-99 

Switch  Handles 51-53 

Three  Wheel  Chuck 92 

Tooth  Tester 78 

Unit    Ecjuipmcnt 61-71 

Unit  Sub-Base 101 

Vacuum  Attachment 100 

Wax  Spatula 56 

Price  List  in  envelope  on  inside  back  cover. 


QoDE  Index 

Qable  address  :  '\R^tter' -T^chester 


Fable 

Fabe  30 

Fabi-ic        40 

Fabricate   42 

Fabulist     43 

Facade 

Faddle 

Fadge 

Faith 

Face 

Fack 

Facing 

Facet 

Fancy 

Facin 

Facial 

Fail 

False 

Fashion 

Fasten 

Faction 

Fad 

Fade 

Fag 

Fagot 

Fain 

Fairy 

Falcate 

Falcon 

Fallacy 

Fallow 

Falter 

Fame 

Famine 


45 
46 

47 
48 

50 

53 
60 
66 
68 

70 

75 


90 

93 
100 

125 

133 

48 
50 
52 
55 
58 
60 
88 
92 


5  cycles    (3000   alternations 
0       "         (3600  " 

"         (4800  " 

(5040 
"        (5160 

(5400 
"  (5520 
"    (5640 

(5760 
"    (6000     " 

(6360 
"    (7200     " 
"    (8000     " 

(S160 
"    ( 8400     " 
"    (9000     " 
"   ( 9600     " 

(9960 
"      ( 10800  " 

"      (II 160  " 

"      (12000  " 

"      ( 1 5000  " 

"      ( 16000  " 

volts       Fanatic  loS  volts 

"  Fancied  1 10 

"  Fane  1 1 5 

"  Fang  120 

"  Fantom.  125 

"  Farce  200 

"  Faring  210 

"  Farina  220 

"  Faro  240 

"  Farther  250 


104       " 

Farrier  Mail  brushes  for  6-v.  Lathe  No. . . 
Farrow  Mail  brushes  for  iio-voltor  220- 

volt  Lathe  No 

Fatal      Mail  brushes  for  no- volt  Direct 

Current  Engine  No 

Fate        Mail  brushes  for  220-volt  Direct 

Current  Engine  No 

Fatally   Mail  brushes  for   Alternating 

Current  Engine  No 

Fathom  Mail   brushes  for  4-volt   Direct 

Current  Engine  No 

Fatigue   Mailbrushesfor  A.C.Lathe No. . 
Falling  Mail   Round  Governor    brushes 

for  A.  C.  Lathe  No 

Fatten     Add  to  our  order  of 

Fatty       Add  to  our  last  order. 

Faun      Advise  us  voltage  wanted  your 

order  of 

Fay         Advise   us   alternations  wanted 

your  order  of 


Fealty 

Feared 

Fearful 

Feast 

Feign 

Feint 

Feline 

Fellow 

Felon 

Felt 

Felspar 

Fend 

Fern 

Ferrett 

Fe7-ry 
Fertile 
Fervor 

Festal 


Festive 

Feud 

Fever 

Fib 

Fickle 

Fiction 

Fiddle 

Fidget 

Fiend 

Fierce 

Fife 

Fight 

Filbert 

Filch 

Fin 

Fist 

Fitful 

Fizz 

Frail 

Flake 
Flame 
Flannel 
Flap 

Flank 
Flash 


Advise  us  voltage  and  alterna- 
tions wanted  your  order  of  . . 

Answer  by  mail. 

Answer  by  cablegram. 

Answer  by  telegram. 

By  what  route  shall  we  ship? 

Cable  immediately. 

Can  you  ship  promptly  on  re- 
ceipt of  order. 

Can  ship  promptly. 

Duplicate  our  order  of 

Duplicate  our  last  order. 

Do  not  insure. 

Hold  for  instructions  our  order 
of 

Hurry  forward  goods  on  our 
order  of 

Hold  for  instructions  our  last 
order. 

Have  remitted. 

Have  you  sent  remittance? 

Have  you  shipped  goods  on  our 
order  of   

Have  you  shipped  goods  on  our 

order  of 

If  not,  when  will  you? 

Include  in  next  shipment. 

Insure  shipment. 

Letter  follows  giving  detailed  in- 
formation. 

Prepay  freight. 

Referring  to  your  letter  of 

Referring  to  our  letter  of 

Referring  to  your  cablegram  of  . 

Referring  to  our  cablegram  of  . . 

Rush  our  order  of 

Ship  by  express. 

Ship  by  express  C.  O.  D. 

Ship  by  express  to  the  Doctor. 

Ship  by  freight  to  the  Doctor. 

Ship  by  mail  to  the  Doctor. 

Ship  by  mail  to  us. 

Ship  by  freight. 

Shipped  by  express  on 

Shipped  by  freight  on 

Send  bill  of  lading  to  cus- 
tomer. 

Send  bill  of  lading  to  us. 

Trace  shipment. 

When  will  you  send  remittance? 

"Where  shall  we  send  bill  of  lad- 
ing? 

We  have  shipped. 

We  will  ship. 


HE    GENESEE    PRESS    OF    ROCHESTER 


i 

COLUMBIA   UNIVERSITY   LIBRARIES 

This  book  is  due  on  the  date  indicated  below,  or  at  the 
expiration  of  a  definite  period  after  the  date  of  borrowing,  as     1 
provided  by  the  library  rules  or  by  special  arrangement  with 
the  Librarian  in  charge. 

DATE  BORROWED 

DATE  DUE 

DATE  BORROWED 

DATE  DUE 

1 

i 

C28(946)M100 

■  =  'A  UNIVERSITY  LIBRARIES  (Hsl.stx) 

RK  686  R5.1  CJ_ 


RK686 


R51 


Ritter  dental  raanufacturing  oo.,   in 
A  catalogue  of  Ritter  dental 
equipment 


